diff --git a/Documentation/usb/rio.txt b/Documentation/usb/rio.txt
deleted file mode 100644
index aee715af7db7..000000000000
--- a/Documentation/usb/rio.txt
+++ /dev/null
@@ -1,138 +0,0 @@
-Copyright (C) 1999, 2000 Bruce Tenison
-Portions Copyright (C) 1999, 2000 David Nelson
-Thanks to David Nelson for guidance and the usage of the scanner.txt
-and scanner.c files to model our driver and this informative file.
-
-Mar. 2, 2000
-
-CHANGES
-
-- Initial Revision
-
-
-OVERVIEW
-
-This README will address issues regarding how to configure the kernel
-to access a RIO 500 mp3 player.  
-Before I explain how to use this to access the Rio500 please be warned:
-
-W A R N I N G:
---------------
-
-Please note that this software is still under development.  The authors
-are in no way responsible for any damage that may occur, no matter how
-inconsequential.
-
-It seems that the Rio has a problem when sending .mp3 with low batteries.
-I suggest when the batteries are low and you want to transfer stuff that you
-replace it with a fresh one. In my case, what happened is I lost two 16kb
-blocks (they are no longer usable to store information to it). But I don't
-know if that's normal or not; it could simply be a problem with the flash 
-memory.
-
-In an extreme case, I left my Rio playing overnight and the batteries wore 
-down to nothing and appear to have corrupted the flash memory. My RIO 
-needed to be replaced as a result.  Diamond tech support is aware of the 
-problem.  Do NOT allow your batteries to wear down to nothing before 
-changing them.  It appears RIO 500 firmware does not handle low battery 
-power well at all. 
-
-On systems with OHCI controllers, the kernel OHCI code appears to have 
-power on problems with some chipsets.  If you are having problems 
-connecting to your RIO 500, try turning it on first and then plugging it 
-into the USB cable.  
-
-Contact information:
---------------------
-
-   The main page for the project is hosted at sourceforge.net in the following
-   URL: <http://rio500.sourceforge.net>. You can also go to the project's
-   sourceforge home page at: <http://sourceforge.net/projects/rio500/>.
-   There is also a mailing list: [email protected]
-
-Authors:
--------
-
-Most of the code was written by Cesar Miquel <[email protected]>. Keith 
-Clayton <[email protected]> is incharge of the PPC port and making sure
-things work there. Bruce Tenison <[email protected]> is adding support
-for .fon files and also does testing. The program will mostly sure be
-re-written and Pete Ikusz along with the rest will re-design it. I would
-also like to thank Tri Nguyen <[email protected]> who provided use 
-with some important information regarding the communication with the Rio.
-
-ADDITIONAL INFORMATION and Userspace tools
-
-http://rio500.sourceforge.net/
-
-
-REQUIREMENTS
-
-A host with a USB port.  Ideally, either a UHCI (Intel) or OHCI
-(Compaq and others) hardware port should work.
-
-A Linux development kernel (2.3.x) with USB support enabled or a
-backported version to linux-2.2.x.  See http://www.linux-usb.org for
-more information on accomplishing this.
-
-A Linux kernel with RIO 500 support enabled.
-
-'lspci' which is only needed to determine the type of USB hardware
-available in your machine.
-
-CONFIGURATION
-
-Using `lspci -v`, determine the type of USB hardware available.
-
-  If you see something like:
-
-    USB Controller: ......
-    Flags: .....
-    I/O ports at ....
-
-  Then you have a UHCI based controller.
-
-  If you see something like:
-
-     USB Controller: .....
-     Flags: ....
-     Memory at .....
-
-  Then you have a OHCI based controller.
-
-Using `make menuconfig` or your preferred method for configuring the
-kernel, select 'Support for USB', 'OHCI/UHCI' depending on your
-hardware (determined from the steps above), 'USB Diamond Rio500 support', and
-'Preliminary USB device filesystem'.  Compile and install the modules
-(you may need to execute `depmod -a` to update the module
-dependencies).
-
-Add a device for the USB rio500:
-  `mknod /dev/usb/rio500 c 180 64`
-
-Set appropriate permissions for /dev/usb/rio500 (don't forget about
-group and world permissions).  Both read and write permissions are
-required for proper operation.
-
-Load the appropriate modules (if compiled as modules):
-
-  OHCI:
-    modprobe usbcore
-    modprobe usb-ohci
-    modprobe rio500
-
-  UHCI:
-    modprobe usbcore
-    modprobe usb-uhci  (or uhci)
-    modprobe rio500
-
-That's it.  The Rio500 Utils at: http://rio500.sourceforge.net should
-be able to access the rio500.
-
-BUGS
-
-If you encounter any problems feel free to drop me an email.
-
-Bruce Tenison
[email protected]
-
diff --git a/MAINTAINERS b/MAINTAINERS
index 98ee40591a9b..fcaab221553e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12473,13 +12473,6 @@ W:     http://www.linux-usb.org/usbnet
 S:     Maintained
 F:     drivers/net/usb/dm9601.c
 
-USB DIAMOND RIO500 DRIVER
-M:     Cesar Miquel <[email protected]>
-L:     [email protected]
-W:     http://rio500.sourceforge.net
-S:     Maintained
-F:     drivers/usb/misc/rio500*
-
 USB EHCI DRIVER
 M:     Alan Stern <[email protected]>
 L:     [email protected]
diff --git a/Makefile b/Makefile
index 194c35eff19c..e62456010d34 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 9
-SUBLEVEL = 196
+SUBLEVEL = 197
 EXTRAVERSION =
 NAME = Roaring Lionus
 
diff --git a/arch/arm/configs/badge4_defconfig 
b/arch/arm/configs/badge4_defconfig
index d59009878312..067d73e3b28b 100644
--- a/arch/arm/configs/badge4_defconfig
+++ b/arch/arm/configs/badge4_defconfig
@@ -97,7 +97,6 @@ CONFIG_USB_SERIAL_PL2303=m
 CONFIG_USB_SERIAL_CYBERJACK=m
 CONFIG_USB_SERIAL_XIRCOM=m
 CONFIG_USB_SERIAL_OMNINET=m
-CONFIG_USB_RIO500=m
 CONFIG_EXT2_FS=m
 CONFIG_EXT3_FS=m
 CONFIG_MSDOS_FS=y
diff --git a/arch/arm/configs/corgi_defconfig b/arch/arm/configs/corgi_defconfig
index c1470a00f55a..031d9d3549b9 100644
--- a/arch/arm/configs/corgi_defconfig
+++ b/arch/arm/configs/corgi_defconfig
@@ -207,7 +207,6 @@ CONFIG_USB_SERIAL_XIRCOM=m
 CONFIG_USB_SERIAL_OMNINET=m
 CONFIG_USB_EMI62=m
 CONFIG_USB_EMI26=m
-CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
 CONFIG_USB_LED=m
diff --git a/arch/arm/configs/pxa_defconfig b/arch/arm/configs/pxa_defconfig
index a016ecc0084b..178ee84dffa1 100644
--- a/arch/arm/configs/pxa_defconfig
+++ b/arch/arm/configs/pxa_defconfig
@@ -591,7 +591,6 @@ CONFIG_USB_SERIAL_XIRCOM=m
 CONFIG_USB_SERIAL_OMNINET=m
 CONFIG_USB_EMI62=m
 CONFIG_USB_EMI26=m
-CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
 CONFIG_USB_LED=m
diff --git a/arch/arm/configs/s3c2410_defconfig 
b/arch/arm/configs/s3c2410_defconfig
index 60d3fecd7a22..dc873d23d603 100644
--- a/arch/arm/configs/s3c2410_defconfig
+++ b/arch/arm/configs/s3c2410_defconfig
@@ -354,7 +354,6 @@ CONFIG_USB_EMI62=m
 CONFIG_USB_EMI26=m
 CONFIG_USB_ADUTUX=m
 CONFIG_USB_SEVSEG=m
-CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
 CONFIG_USB_LED=m
diff --git a/arch/arm/configs/spitz_defconfig b/arch/arm/configs/spitz_defconfig
index a1ede1966baf..7d9aa284cb6f 100644
--- a/arch/arm/configs/spitz_defconfig
+++ b/arch/arm/configs/spitz_defconfig
@@ -202,7 +202,6 @@ CONFIG_USB_SERIAL_XIRCOM=m
 CONFIG_USB_SERIAL_OMNINET=m
 CONFIG_USB_EMI62=m
 CONFIG_USB_EMI26=m
-CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
 CONFIG_USB_LED=m
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index f3f60056bc27..fb5651b99ab2 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -637,7 +637,6 @@ CONFIG_USB_SERIAL_OMNINET=m
 CONFIG_USB_EMI62=m
 CONFIG_USB_EMI26=m
 CONFIG_USB_ADUTUX=m
-CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
 CONFIG_USB_LED=m
diff --git a/arch/mips/configs/rm200_defconfig 
b/arch/mips/configs/rm200_defconfig
index c2b4e3f33a73..4f6b45f64c2f 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -350,7 +350,6 @@ CONFIG_USB_SERIAL_SAFE_PADDED=y
 CONFIG_USB_SERIAL_CYBERJACK=m
 CONFIG_USB_SERIAL_XIRCOM=m
 CONFIG_USB_SERIAL_OMNINET=m
-CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
 CONFIG_USB_LED=m
diff --git a/arch/mips/loongson64/Platform b/arch/mips/loongson64/Platform
index 0fce4608aa88..12abf14aed4a 100644
--- a/arch/mips/loongson64/Platform
+++ b/arch/mips/loongson64/Platform
@@ -43,6 +43,10 @@ else
       $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA 
-D_MIPS_ISA=_MIPS_ISA_MIPS64)
 endif
 
+# Some -march= flags enable MMI instructions, and GCC complains about that
+# support being enabled alongside -msoft-float. Thus explicitly disable MMI.
+cflags-y += $(call cc-option,-mno-loongson-mmi)
+
 #
 # Loongson Machines' Support
 #
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
index 247ca2e9add9..adfaee2dce34 100644
--- a/arch/mips/vdso/Makefile
+++ b/arch/mips/vdso/Makefile
@@ -8,6 +8,7 @@ ccflags-vdso := \
        $(filter -mmicromips,$(KBUILD_CFLAGS)) \
        $(filter -march=%,$(KBUILD_CFLAGS)) \
        $(filter -m%-float,$(KBUILD_CFLAGS)) \
+       $(filter -mno-loongson-%,$(KBUILD_CFLAGS)) \
        -D__VDSO__
 cflags-vdso := $(ccflags-vdso) \
        $(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
diff --git a/arch/powerpc/platforms/powernv/opal.c 
b/arch/powerpc/platforms/powernv/opal.c
index 7fb61ebc99a2..c34a44e04c87 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -579,7 +579,10 @@ static ssize_t symbol_map_read(struct file *fp, struct 
kobject *kobj,
                                       bin_attr->size);
 }
 
-static BIN_ATTR_RO(symbol_map, 0);
+static struct bin_attribute symbol_map_attr = {
+       .attr = {.name = "symbol_map", .mode = 0400},
+       .read = symbol_map_read
+};
 
 static void opal_export_symmap(void)
 {
@@ -596,10 +599,10 @@ static void opal_export_symmap(void)
                return;
 
        /* Setup attributes */
-       bin_attr_symbol_map.private = __va(be64_to_cpu(syms[0]));
-       bin_attr_symbol_map.size = be64_to_cpu(syms[1]);
+       symbol_map_attr.private = __va(be64_to_cpu(syms[0]));
+       symbol_map_attr.size = be64_to_cpu(syms[1]);
 
-       rc = sysfs_create_bin_file(opal_kobj, &bin_attr_symbol_map);
+       rc = sysfs_create_bin_file(opal_kobj, &symbol_map_attr);
        if (rc)
                pr_warn("Error %d creating OPAL symbols file\n", rc);
 }
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 239f29508f0b..69ac47241b19 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -256,7 +256,8 @@ int arch_update_cpu_topology(void)
                topology_update_polarization_simple();
        for_each_online_cpu(cpu) {
                dev = get_cpu_device(cpu);
-               kobject_uevent(&dev->kobj, KOBJ_CHANGE);
+               if (dev)
+                       kobject_uevent(&dev->kobj, KOBJ_CHANGE);
        }
        return rc;
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index ea20b60edde7..3dc96b455e0c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -3033,7 +3033,7 @@ static long kvm_s390_guest_mem_op(struct kvm_vcpu *vcpu,
        const u64 supported_flags = KVM_S390_MEMOP_F_INJECT_EXCEPTION
                                    | KVM_S390_MEMOP_F_CHECK_ONLY;
 
-       if (mop->flags & ~supported_flags)
+       if (mop->flags & ~supported_flags || mop->ar >= NUM_ACRS || !mop->size)
                return -EINVAL;
 
        if (mop->size > MEM_OP_MAX_SIZE)
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
index 0b40cc442bda..58b1b766e84e 100644
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
@@ -19,7 +19,7 @@
 #define MWAIT_ECX_INTERRUPT_BREAK      0x1
 #define MWAITX_ECX_TIMER_ENABLE                BIT(1)
 #define MWAITX_MAX_LOOPS               ((u32)-1)
-#define MWAITX_DISABLE_CSTATES         0xf
+#define MWAITX_DISABLE_CSTATES         0xf0
 
 static inline void __monitor(const void *eax, unsigned long ecx,
                             unsigned long edx)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7ab13ad53a59..6b66d1f0d185 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7668,7 +7668,7 @@ static int handle_vmread(struct kvm_vcpu *vcpu)
                /* _system ok, as nested_vmx_check_permission verified cpl=0 */
                if (kvm_write_guest_virt_system(vcpu, gva, &field_value,
                                                (is_long_mode(vcpu) ? 8 : 4),
-                                               NULL))
+                                               &e))
                        kvm_inject_page_fault(vcpu, &e);
        }
 
diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c
index 9758524ee99f..71a3759a2d4e 100644
--- a/arch/x86/lib/delay.c
+++ b/arch/x86/lib/delay.c
@@ -112,8 +112,8 @@ static void delay_mwaitx(unsigned long __loops)
                __monitorx(raw_cpu_ptr(&cpu_tss), 0, 0);
 
                /*
-                * AMD, like Intel, supports the EAX hint and EAX=0xf
-                * means, do not enter any deep C-state and we use it
+                * AMD, like Intel's MWAIT version, supports the EAX hint and
+                * EAX=0xf0 means, do not enter any deep C-state and we use it
                 * here in delay() to minimize wakeup latency.
                 */
                __mwaitx(MWAITX_DISABLE_CSTATES, delay, 
MWAITX_ECX_TIMER_ENABLE);
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index f8ac768ed5d7..413e1f35773f 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -75,7 +75,7 @@
 #define DESC_AEAD_BASE                 (4 * CAAM_CMD_SZ)
 #define DESC_AEAD_ENC_LEN              (DESC_AEAD_BASE + 11 * CAAM_CMD_SZ)
 #define DESC_AEAD_DEC_LEN              (DESC_AEAD_BASE + 15 * CAAM_CMD_SZ)
-#define DESC_AEAD_GIVENC_LEN           (DESC_AEAD_ENC_LEN + 9 * CAAM_CMD_SZ)
+#define DESC_AEAD_GIVENC_LEN           (DESC_AEAD_ENC_LEN + 10 * CAAM_CMD_SZ)
 
 /* Note: Nonce is counted in enckeylen */
 #define DESC_AEAD_CTR_RFC3686_LEN      (4 * CAAM_CMD_SZ)
@@ -474,6 +474,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
        u32 geniv, moveiv;
        u32 ctx1_iv_off = 0;
        u32 *desc;
+       u32 *wait_cmd;
        const bool ctr_mode = ((ctx->class1_alg_type & OP_ALG_AAI_MASK) ==
                               OP_ALG_AAI_CTR_MOD128);
        const bool is_rfc3686 = alg->caam.rfc3686;
@@ -736,6 +737,14 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
 
        /* Will read cryptlen */
        append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+       /*
+        * Wait for IV transfer (ofifo -> class2) to finish before starting
+        * ciphertext transfer (ofifo -> external memory).
+        */
+       wait_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL | JUMP_COND_NIFP);
+       set_jump_tgt_here(desc, wait_cmd);
+
        append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH | KEY_VLF |
                             FIFOLD_TYPE_MSG1OUT2 | FIFOLD_TYPE_LASTBOTH);
        append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
diff --git a/drivers/crypto/qat/qat_common/adf_common_drv.h 
b/drivers/crypto/qat/qat_common/adf_common_drv.h
index 980e07475012..0d596a99f564 100644
--- a/drivers/crypto/qat/qat_common/adf_common_drv.h
+++ b/drivers/crypto/qat/qat_common/adf_common_drv.h
@@ -95,7 +95,7 @@ struct service_hndl {
 
 static inline int get_current_node(void)
 {
-       return topology_physical_package_id(smp_processor_id());
+       return topology_physical_package_id(raw_smp_processor_id());
 }
 
 int adf_service_register(struct service_hndl *service);
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 2f47c5b5f4cb..d89457d62a24 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -243,6 +243,9 @@ static __init int efivar_ssdt_load(void)
        void *data;
        int ret;
 
+       if (!efivar_ssdt[0])
+               return 0;
+
        ret = efivar_init(efivar_ssdt_iter, &entries, true, &entries);
 
        list_for_each_entry_safe(entry, aux, &entries, list) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 3938fca1ea8e..24941a7b659f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -430,6 +430,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void 
*data, struct drm_file
                if (sh_num == AMDGPU_INFO_MMR_SH_INDEX_MASK)
                        sh_num = 0xffffffff;
 
+               if (info->read_mmr_reg.count > 128)
+                       return -EINVAL;
+
                regs = kmalloc_array(info->read_mmr_reg.count, sizeof(*regs), 
GFP_KERNEL);
                if (!regs)
                        return -ENOMEM;
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c 
b/drivers/hwtracing/coresight/coresight-etm4x.c
index da27f8edba50..44d6c29e2644 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -181,6 +181,12 @@ static void etm4_enable_hw(void *info)
        if (coresight_timeout(drvdata->base, TRCSTATR, TRCSTATR_IDLE_BIT, 0))
                dev_err(drvdata->dev,
                        "timeout while waiting for Idle Trace Status\n");
+       /*
+        * As recommended by section 4.3.7 ("Synchronization when using the
+        * memory-mapped interface") of ARM IHI 0064D
+        */
+       dsb(sy);
+       isb();
 
        CS_LOCK(drvdata->base);
 
@@ -323,8 +329,12 @@ static void etm4_disable_hw(void *info)
        /* EN, bit[0] Trace unit enable bit */
        control &= ~0x1;
 
-       /* make sure everything completes before disabling */
-       mb();
+       /*
+        * Make sure everything completes before disabling, as recommended
+        * by section 7.3.77 ("TRCVICTLR, ViewInst Main Control Register,
+        * SSTATUS") of ARM IHI 0064D
+        */
+       dsb(sy);
        isb();
        writel_relaxed(control, drvdata->base + TRCPRGCTLR);
 
diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
index 9704090b7908..cd6dbe95125b 100644
--- a/drivers/iio/adc/ad799x.c
+++ b/drivers/iio/adc/ad799x.c
@@ -817,10 +817,10 @@ static int ad799x_probe(struct i2c_client *client,
 
        ret = ad799x_write_config(st, st->chip_config->default_config);
        if (ret < 0)
-               goto error_disable_reg;
+               goto error_disable_vref;
        ret = ad799x_read_config(st);
        if (ret < 0)
-               goto error_disable_reg;
+               goto error_disable_vref;
        st->config = ret;
 
        ret = iio_triggered_buffer_setup(indio_dev, NULL,
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
index 78c9b3a6453a..be55477de2ac 100644
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -695,6 +695,7 @@ static irqreturn_t opt3001_irq(int irq, void *_iio)
        struct iio_dev *iio = _iio;
        struct opt3001 *opt = iio_priv(iio);
        int ret;
+       bool wake_result_ready_queue = false;
 
        if (!opt->ok_to_ignore_lock)
                mutex_lock(&opt->lock);
@@ -729,13 +730,16 @@ static irqreturn_t opt3001_irq(int irq, void *_iio)
                }
                opt->result = ret;
                opt->result_ready = true;
-               wake_up(&opt->result_ready_queue);
+               wake_result_ready_queue = true;
        }
 
 out:
        if (!opt->ok_to_ignore_lock)
                mutex_unlock(&opt->lock);
 
+       if (wake_result_ready_queue)
+               wake_up(&opt->result_ready_queue);
+
        return IRQ_HANDLED;
 }
 
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c 
b/drivers/media/usb/stkwebcam/stk-webcam.c
index 1c48f2f1e14a..7297fd261df9 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.c
+++ b/drivers/media/usb/stkwebcam/stk-webcam.c
@@ -647,8 +647,7 @@ static int v4l_stk_release(struct file *fp)
                dev->owner = NULL;
        }
 
-       if (is_present(dev))
-               usb_autopm_put_interface(dev->interface);
+       usb_autopm_put_interface(dev->interface);
        mutex_unlock(&dev->lock);
        return v4l2_fh_release(fp);
 }
diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c
index d8c448beab24..ec0b3d025867 100644
--- a/drivers/net/can/spi/mcp251x.c
+++ b/drivers/net/can/spi/mcp251x.c
@@ -627,7 +627,7 @@ static int mcp251x_setup(struct net_device *net, struct 
mcp251x_priv *priv,
 static int mcp251x_hw_reset(struct spi_device *spi)
 {
        struct mcp251x_priv *priv = spi_get_drvdata(spi);
-       u8 reg;
+       unsigned long timeout;
        int ret;
 
        /* Wait for oscillator startup timer after power up */
@@ -641,10 +641,19 @@ static int mcp251x_hw_reset(struct spi_device *spi)
        /* Wait for oscillator startup timer after reset */
        mdelay(MCP251X_OST_DELAY_MS);
 
-       reg = mcp251x_read_reg(spi, CANSTAT);
-       if ((reg & CANCTRL_REQOP_MASK) != CANCTRL_REQOP_CONF)
-               return -ENODEV;
-
+       /* Wait for reset to finish */
+       timeout = jiffies + HZ;
+       while ((mcp251x_read_reg(spi, CANSTAT) & CANCTRL_REQOP_MASK) !=
+              CANCTRL_REQOP_CONF) {
+               usleep_range(MCP251X_OST_DELAY_MS * 1000,
+                            MCP251X_OST_DELAY_MS * 1000 * 2);
+
+               if (time_after(jiffies, timeout)) {
+                       dev_err(&spi->dev,
+                               "MCP251x didn't enter in conf mode after 
reset\n");
+                       return -EBUSY;
+               }
+       }
        return 0;
 }
 
diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c
index f186e0460cde..12df6cfb423a 100644
--- a/drivers/net/ieee802154/atusb.c
+++ b/drivers/net/ieee802154/atusb.c
@@ -838,10 +838,11 @@ static void atusb_disconnect(struct usb_interface 
*interface)
 
        ieee802154_unregister_hw(atusb->hw);
 
+       usb_put_dev(atusb->usb_dev);
+
        ieee802154_free_hw(atusb->hw);
 
        usb_set_intfdata(interface, NULL);
-       usb_put_dev(atusb->usb_dev);
 
        pr_debug("atusb_disconnect done\n");
 }
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index e443b0d0b236..0d59c128f734 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -369,7 +369,7 @@ int ccwgroup_create_dev(struct device *parent, struct 
ccwgroup_driver *gdrv,
                goto error;
        }
        /* Check for trailing stuff. */
-       if (i == num_devices && strlen(buf) > 0) {
+       if (i == num_devices && buf && strlen(buf) > 0) {
                rc = -EINVAL;
                goto error;
        }
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 3d2b20ee613f..39a2b0cde9e4 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -1120,6 +1120,8 @@ device_initcall(cio_settle_init);
 
 int sch_is_pseudo_sch(struct subchannel *sch)
 {
+       if (!sch->dev.parent)
+               return 0;
        return sch == to_css(sch->dev.parent)->pseudo_subchannel;
 }
 
diff --git a/drivers/staging/fbtft/fbtft-core.c 
b/drivers/staging/fbtft/fbtft-core.c
index 587f68aa466c..d9ba8c0f1353 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -247,7 +247,7 @@ static int fbtft_request_gpios_dt(struct fbtft_par *par)
 static int fbtft_backlight_update_status(struct backlight_device *bd)
 {
        struct fbtft_par *par = bl_get_data(bd);
-       bool polarity = !!(bd->props.state & BL_CORE_DRIVER1);
+       bool polarity = par->polarity;
 
        fbtft_par_dbg(DEBUG_BACKLIGHT, par,
                "%s: polarity=%d, power=%d, fb_blank=%d\n",
@@ -296,7 +296,7 @@ void fbtft_register_backlight(struct fbtft_par *par)
        /* Assume backlight is off, get polarity from current state of pin */
        bl_props.power = FB_BLANK_POWERDOWN;
        if (!gpio_get_value(par->gpio.led[0]))
-               bl_props.state |= BL_CORE_DRIVER1;
+               par->polarity = true;
 
        bd = backlight_device_register(dev_driver_string(par->info->device),
                                par->info->device, par, &fbtft_bl_ops, 
&bl_props);
@@ -814,7 +814,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct 
fbtft_display *display,
        if (par->gamma.curves && gamma) {
                if (fbtft_gamma_parse_str(par,
                        par->gamma.curves, gamma, strlen(gamma)))
-                       goto alloc_fail;
+                       goto release_framebuf;
        }
 
        /* Transmit buffer */
@@ -839,7 +839,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct 
fbtft_display *display,
                        txbuf = devm_kzalloc(par->info->device, txbuflen, 
GFP_KERNEL);
                }
                if (!txbuf)
-                       goto alloc_fail;
+                       goto release_framebuf;
                par->txbuf.buf = txbuf;
                par->txbuf.len = txbuflen;
        }
@@ -875,6 +875,9 @@ struct fb_info *fbtft_framebuffer_alloc(struct 
fbtft_display *display,
 
        return info;
 
+release_framebuf:
+       framebuffer_release(info);
+
 alloc_fail:
        vfree(vmem);
 
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 89c4b5b76ce6..027531990674 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -241,6 +241,7 @@ struct fbtft_par {
        ktime_t update_time;
        bool bgr;
        void *extra;
+       bool polarity;
 };
 
 #define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__})/sizeof(int))
diff --git a/drivers/staging/vt6655/device_main.c 
b/drivers/staging/vt6655/device_main.c
index 22e5116e74f8..bcdbf38b6916 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1673,8 +1673,10 @@ vt6655_probe(struct pci_dev *pcid, const struct 
pci_device_id *ent)
 
        priv->hw->max_signal = 100;
 
-       if (vnt_init(priv))
+       if (vnt_init(priv)) {
+               device_free_info(priv);
                return -ENODEV;
+       }
 
        device_print_info(priv);
        pci_set_drvdata(pcid, priv);
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index cd82ae34ddfa..57603be42c50 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -402,7 +402,7 @@ static void thermal_zone_device_set_polling(struct 
thermal_zone_device *tz,
                mod_delayed_work(system_freezable_wq, &tz->poll_queue,
                                 msecs_to_jiffies(delay));
        else
-               cancel_delayed_work(&tz->poll_queue);
+               cancel_delayed_work_sync(&tz->poll_queue);
 }
 
 static void monitor_thermal_zone(struct thermal_zone_device *tz)
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 817bb0d3f326..9a54aafe8405 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -746,7 +746,8 @@ static int __init ulite_init(void)
 static void __exit ulite_exit(void)
 {
        platform_driver_unregister(&ulite_platform_driver);
-       uart_unregister_driver(&ulite_uart_driver);
+       if (ulite_uart_driver.state)
+               uart_unregister_driver(&ulite_uart_driver);
 }
 
 module_init(ulite_init);
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 071964c7847f..0669fbb0ec25 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -474,10 +474,12 @@ static int usblp_release(struct inode *inode, struct file 
*file)
 
        mutex_lock(&usblp_mutex);
        usblp->used = 0;
-       if (usblp->present) {
+       if (usblp->present)
                usblp_unlink_urbs(usblp);
-               usb_autopm_put_interface(usblp->intf);
-       } else          /* finish cleanup from disconnect */
+
+       usb_autopm_put_interface(usblp->intf);
+
+       if (!usblp->present)            /* finish cleanup from disconnect */
                usblp_cleanup(usblp);
        mutex_unlock(&usblp_mutex);
        return 0;
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c 
b/drivers/usb/gadget/udc/dummy_hcd.c
index ab89fa3b4118..2f7023a289c9 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -50,6 +50,7 @@
 #define DRIVER_VERSION "02 May 2005"
 
 #define POWER_BUDGET   500     /* in mA; use 8 for low-power port testing */
+#define POWER_BUDGET_3 900     /* in mA */
 
 static const char      driver_name[] = "dummy_hcd";
 static const char      driver_desc[] = "USB Host+Gadget Emulator";
@@ -2433,7 +2434,7 @@ static int dummy_start_ss(struct dummy_hcd *dum_hcd)
        dum_hcd->rh_state = DUMMY_RH_RUNNING;
        dum_hcd->stream_en_ep = 0;
        INIT_LIST_HEAD(&dum_hcd->urbp_list);
-       dummy_hcd_to_hcd(dum_hcd)->power_budget = POWER_BUDGET;
+       dummy_hcd_to_hcd(dum_hcd)->power_budget = POWER_BUDGET_3;
        dummy_hcd_to_hcd(dum_hcd)->state = HC_STATE_RUNNING;
        dummy_hcd_to_hcd(dum_hcd)->uses_new_polling = 1;
 #ifdef CONFIG_USB_OTG
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index d2e3917cbd91..69ad9817076a 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -3200,10 +3200,10 @@ static int xhci_align_td(struct xhci_hcd *xhci, struct 
urb *urb, u32 enqd_len,
        if (usb_urb_dir_out(urb)) {
                len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs,
                                   seg->bounce_buf, new_buff_len, enqd_len);
-               if (len != seg->bounce_len)
+               if (len != new_buff_len)
                        xhci_warn(xhci,
                                "WARN Wrong bounce buffer write length: %zu != 
%d\n",
-                               len, seg->bounce_len);
+                               len, new_buff_len);
                seg->bounce_dma = dma_map_single(dev, seg->bounce_buf,
                                                 max_pkt, DMA_TO_DEVICE);
        } else {
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index ebdd82091a42..755016729f12 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -985,7 +985,7 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup)
        command |= CMD_CSS;
        writel(command, &xhci->op_regs->command);
        if (xhci_handshake(&xhci->op_regs->status,
-                               STS_SAVE, 0, 10 * 1000)) {
+                               STS_SAVE, 0, 20 * 1000)) {
                xhci_warn(xhci, "WARN: xHC save state timeout\n");
                spin_unlock_irq(&xhci->lock);
                return -ETIMEDOUT;
@@ -1045,6 +1045,18 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
                hibernated = true;
 
        if (!hibernated) {
+               /*
+                * Some controllers might lose power during suspend, so wait
+                * for controller not ready bit to clear, just as in xHC init.
+                */
+               retval = xhci_handshake(&xhci->op_regs->status,
+                                       STS_CNR, 0, 10 * 1000 * 1000);
+               if (retval) {
+                       xhci_warn(xhci, "Controller not ready at resume %d\n",
+                                 retval);
+                       spin_unlock_irq(&xhci->lock);
+                       return retval;
+               }
                /* step 1: restore register */
                xhci_restore_registers(xhci);
                /* step 2: initialize command ring buffer */
@@ -4510,12 +4522,12 @@ static int xhci_update_timeout_for_endpoint(struct 
xhci_hcd *xhci,
        alt_timeout = xhci_call_host_update_timeout_for_endpoint(xhci, udev,
                desc, state, timeout);
 
-       /* If we found we can't enable hub-initiated LPM, or
+       /* If we found we can't enable hub-initiated LPM, and
         * the U1 or U2 exit latency was too high to allow
-        * device-initiated LPM as well, just stop searching.
+        * device-initiated LPM as well, then we will disable LPM
+        * for this device, so stop searching any further.
         */
-       if (alt_timeout == USB3_LPM_DISABLED ||
-                       alt_timeout == USB3_LPM_DEVICE_INITIATED) {
+       if (alt_timeout == USB3_LPM_DISABLED) {
                *timeout = alt_timeout;
                return -E2BIG;
        }
@@ -4626,10 +4638,12 @@ static u16 xhci_calculate_lpm_timeout(struct usb_hcd 
*hcd,
                if (intf->dev.driver) {
                        driver = to_usb_driver(intf->dev.driver);
                        if (driver && driver->disable_hub_initiated_lpm) {
-                               dev_dbg(&udev->dev, "Hub-initiated %s disabled "
-                                               "at request of driver %s\n",
-                                               state_name, driver->name);
-                               return xhci_get_timeout_no_hub_lpm(udev, state);
+                               dev_dbg(&udev->dev, "Hub-initiated %s disabled 
at request of driver %s\n",
+                                       state_name, driver->name);
+                               timeout = xhci_get_timeout_no_hub_lpm(udev,
+                                                                     state);
+                               if (timeout == USB3_LPM_DISABLED)
+                                       return timeout;
                        }
                }
 
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index a4dbb0cd80da..0fecc002fa9f 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -724,6 +724,10 @@ static int mts_usb_probe(struct usb_interface *intf,
 
        }
 
+       if (ep_in_current != &ep_in_set[2]) {
+               MTS_WARNING("couldn't find two input bulk endpoints. Bailing 
out.\n");
+               return -ENODEV;
+       }
 
        if ( ep_out == -1 ) {
                MTS_WARNING( "couldn't find an output bulk endpoint. Bailing 
out.\n" );
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 47b357760afc..2de07a3653a0 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -46,16 +46,6 @@ config USB_SEVSEG
          To compile this driver as a module, choose M here: the
          module will be called usbsevseg.
 
-config USB_RIO500
-       tristate "USB Diamond Rio500 support"
-       help
-         Say Y here if you want to connect a USB Rio500 mp3 player to your
-         computer's USB port. Please read <file:Documentation/usb/rio.txt>
-         for more information.
-
-         To compile this driver as a module, choose M here: the
-         module will be called rio500.
-
 config USB_LEGOTOWER
        tristate "USB Lego Infrared Tower support"
        help
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 3d1992750da4..2b21872cd733 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -16,7 +16,6 @@ obj-$(CONFIG_USB_ISIGHTFW)            += isight_firmware.o
 obj-$(CONFIG_USB_LCD)                  += usblcd.o
 obj-$(CONFIG_USB_LD)                   += ldusb.o
 obj-$(CONFIG_USB_LEGOTOWER)            += legousbtower.o
-obj-$(CONFIG_USB_RIO500)               += rio500.o
 obj-$(CONFIG_USB_TEST)                 += usbtest.o
 obj-$(CONFIG_USB_EHSET_TEST_FIXTURE)    += ehset.o
 obj-$(CONFIG_USB_TRANCEVIBRATOR)       += trancevibrator.o
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 564268fca07a..f0c071da68d1 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -80,6 +80,7 @@ struct adu_device {
        char                    serial_number[8];
 
        int                     open_count; /* number of times this port has 
been opened */
+       unsigned long           disconnected:1;
 
        char            *read_buffer_primary;
        int                     read_buffer_length;
@@ -121,7 +122,7 @@ static void adu_abort_transfers(struct adu_device *dev)
 {
        unsigned long flags;
 
-       if (dev->udev == NULL)
+       if (dev->disconnected)
                return;
 
        /* shutdown transfer */
@@ -151,6 +152,7 @@ static void adu_delete(struct adu_device *dev)
        kfree(dev->read_buffer_secondary);
        kfree(dev->interrupt_in_buffer);
        kfree(dev->interrupt_out_buffer);
+       usb_put_dev(dev->udev);
        kfree(dev);
 }
 
@@ -244,7 +246,7 @@ static int adu_open(struct inode *inode, struct file *file)
        }
 
        dev = usb_get_intfdata(interface);
-       if (!dev || !dev->udev) {
+       if (!dev) {
                retval = -ENODEV;
                goto exit_no_device;
        }
@@ -327,7 +329,7 @@ static int adu_release(struct inode *inode, struct file 
*file)
        }
 
        adu_release_internal(dev);
-       if (dev->udev == NULL) {
+       if (dev->disconnected) {
                /* the device was unplugged before the file was released */
                if (!dev->open_count)   /* ... and we're the last user */
                        adu_delete(dev);
@@ -356,7 +358,7 @@ static ssize_t adu_read(struct file *file, __user char 
*buffer, size_t count,
                return -ERESTARTSYS;
 
        /* verify that the device wasn't unplugged */
-       if (dev->udev == NULL) {
+       if (dev->disconnected) {
                retval = -ENODEV;
                pr_err("No device or device unplugged %d\n", retval);
                goto exit;
@@ -525,7 +527,7 @@ static ssize_t adu_write(struct file *file, const __user 
char *buffer,
                goto exit_nolock;
 
        /* verify that the device wasn't unplugged */
-       if (dev->udev == NULL) {
+       if (dev->disconnected) {
                retval = -ENODEV;
                pr_err("No device or device unplugged %d\n", retval);
                goto exit;
@@ -679,7 +681,7 @@ static int adu_probe(struct usb_interface *interface,
 
        mutex_init(&dev->mtx);
        spin_lock_init(&dev->buflock);
-       dev->udev = udev;
+       dev->udev = usb_get_dev(udev);
        init_waitqueue_head(&dev->read_wait);
        init_waitqueue_head(&dev->write_wait);
 
@@ -789,19 +791,21 @@ static int adu_probe(struct usb_interface *interface,
 static void adu_disconnect(struct usb_interface *interface)
 {
        struct adu_device *dev;
-       int minor;
 
        dev = usb_get_intfdata(interface);
 
-       mutex_lock(&dev->mtx);  /* not interruptible */
-       dev->udev = NULL;       /* poison */
-       minor = dev->minor;
        usb_deregister_dev(interface, &adu_class);
-       mutex_unlock(&dev->mtx);
+
+       usb_poison_urb(dev->interrupt_in_urb);
+       usb_poison_urb(dev->interrupt_out_urb);
 
        mutex_lock(&adutux_mutex);
        usb_set_intfdata(interface, NULL);
 
+       mutex_lock(&dev->mtx);  /* not interruptible */
+       dev->disconnected = 1;
+       mutex_unlock(&dev->mtx);
+
        /* if the device is not opened, then we clean up right now */
        if (!dev->open_count)
                adu_delete(dev);
diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c
index efecb87428b1..64f2eeffaa00 100644
--- a/drivers/usb/misc/chaoskey.c
+++ b/drivers/usb/misc/chaoskey.c
@@ -108,6 +108,7 @@ static void chaoskey_free(struct chaoskey *dev)
                usb_free_urb(dev->urb);
                kfree(dev->name);
                kfree(dev->buf);
+               usb_put_intf(dev->interface);
                kfree(dev);
        }
 }
@@ -157,6 +158,8 @@ static int chaoskey_probe(struct usb_interface *interface,
        if (dev == NULL)
                goto out;
 
+       dev->interface = usb_get_intf(interface);
+
        dev->buf = kmalloc(size, GFP_KERNEL);
 
        if (dev->buf == NULL)
@@ -190,8 +193,6 @@ static int chaoskey_probe(struct usb_interface *interface,
                strcat(dev->name, udev->serial);
        }
 
-       dev->interface = interface;
-
        dev->in_ep = in_ep;
 
        if (le16_to_cpu(udev->descriptor.idVendor) != ALEA_VENDOR_ID)
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 318e087f8442..1b83946bfb18 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -89,6 +89,7 @@ struct iowarrior {
        char chip_serial[9];            /* the serial number string of the chip 
connected */
        int report_size;                /* number of bytes in a report */
        u16 product_id;
+       struct usb_anchor submitted;
 };
 
 /*--------------*/
@@ -248,6 +249,7 @@ static inline void iowarrior_delete(struct iowarrior *dev)
        kfree(dev->int_in_buffer);
        usb_free_urb(dev->int_in_urb);
        kfree(dev->read_queue);
+       usb_put_intf(dev->interface);
        kfree(dev);
 }
 
@@ -434,11 +436,13 @@ static ssize_t iowarrior_write(struct file *file,
                        retval = -EFAULT;
                        goto error;
                }
+               usb_anchor_urb(int_out_urb, &dev->submitted);
                retval = usb_submit_urb(int_out_urb, GFP_KERNEL);
                if (retval) {
                        dev_dbg(&dev->interface->dev,
                                "submit error %d for urb nr.%d\n",
                                retval, atomic_read(&dev->write_busy));
+                       usb_unanchor_urb(int_out_urb);
                        goto error;
                }
                /* submit was ok */
@@ -776,11 +780,13 @@ static int iowarrior_probe(struct usb_interface 
*interface,
        init_waitqueue_head(&dev->write_wait);
 
        dev->udev = udev;
-       dev->interface = interface;
+       dev->interface = usb_get_intf(interface);
 
        iface_desc = interface->cur_altsetting;
        dev->product_id = le16_to_cpu(udev->descriptor.idProduct);
 
+       init_usb_anchor(&dev->submitted);
+
        /* set up the endpoint information */
        for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
                endpoint = &iface_desc->endpoint[i].desc;
@@ -886,8 +892,6 @@ static void iowarrior_disconnect(struct usb_interface 
*interface)
        dev = usb_get_intfdata(interface);
        mutex_lock(&iowarrior_open_disc_lock);
        usb_set_intfdata(interface, NULL);
-       /* prevent device read, write and ioctl */
-       dev->present = 0;
 
        minor = dev->minor;
        mutex_unlock(&iowarrior_open_disc_lock);
@@ -898,8 +902,7 @@ static void iowarrior_disconnect(struct usb_interface 
*interface)
        mutex_lock(&dev->mutex);
 
        /* prevent device read, write and ioctl */
-
-       mutex_unlock(&dev->mutex);
+       dev->present = 0;
 
        if (dev->opened) {
                /* There is a process that holds a filedescriptor to the device 
,
@@ -907,10 +910,13 @@ static void iowarrior_disconnect(struct usb_interface 
*interface)
                   Deleting the device is postponed until close() was called.
                 */
                usb_kill_urb(dev->int_in_urb);
+               usb_kill_anchored_urbs(&dev->submitted);
                wake_up_interruptible(&dev->read_wait);
                wake_up_interruptible(&dev->write_wait);
+               mutex_unlock(&dev->mutex);
        } else {
                /* no process is using the device, cleanup now */
+               mutex_unlock(&dev->mutex);
                iowarrior_delete(dev);
        }
 
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index c5e3032a4d6b..eee69c9e9a12 100644
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -158,6 +158,7 @@ MODULE_PARM_DESC(min_interrupt_out_interval, "Minimum 
interrupt out interval in
 struct ld_usb {
        struct mutex            mutex;          /* locks this structure */
        struct usb_interface*   intf;           /* save off the usb interface 
pointer */
+       unsigned long           disconnected:1;
 
        int                     open_count;     /* number of times this port 
has been opened */
 
@@ -197,12 +198,10 @@ static void ld_usb_abort_transfers(struct ld_usb *dev)
        /* shutdown transfer */
        if (dev->interrupt_in_running) {
                dev->interrupt_in_running = 0;
-               if (dev->intf)
-                       usb_kill_urb(dev->interrupt_in_urb);
+               usb_kill_urb(dev->interrupt_in_urb);
        }
        if (dev->interrupt_out_busy)
-               if (dev->intf)
-                       usb_kill_urb(dev->interrupt_out_urb);
+               usb_kill_urb(dev->interrupt_out_urb);
 }
 
 /**
@@ -210,8 +209,6 @@ static void ld_usb_abort_transfers(struct ld_usb *dev)
  */
 static void ld_usb_delete(struct ld_usb *dev)
 {
-       ld_usb_abort_transfers(dev);
-
        /* free data structures */
        usb_free_urb(dev->interrupt_in_urb);
        usb_free_urb(dev->interrupt_out_urb);
@@ -267,7 +264,7 @@ static void ld_usb_interrupt_in_callback(struct urb *urb)
 
 resubmit:
        /* resubmit if we're still running */
-       if (dev->interrupt_in_running && !dev->buffer_overflow && dev->intf) {
+       if (dev->interrupt_in_running && !dev->buffer_overflow) {
                retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);
                if (retval) {
                        dev_err(&dev->intf->dev,
@@ -396,7 +393,7 @@ static int ld_usb_release(struct inode *inode, struct file 
*file)
                retval = -ENODEV;
                goto unlock_exit;
        }
-       if (dev->intf == NULL) {
+       if (dev->disconnected) {
                /* the device was unplugged before the file was released */
                mutex_unlock(&dev->mutex);
                /* unlock here as ld_usb_delete frees dev */
@@ -427,7 +424,7 @@ static unsigned int ld_usb_poll(struct file *file, 
poll_table *wait)
 
        dev = file->private_data;
 
-       if (!dev->intf)
+       if (dev->disconnected)
                return POLLERR | POLLHUP;
 
        poll_wait(file, &dev->read_wait, wait);
@@ -466,7 +463,7 @@ static ssize_t ld_usb_read(struct file *file, char __user 
*buffer, size_t count,
        }
 
        /* verify that the device wasn't unplugged */
-       if (dev->intf == NULL) {
+       if (dev->disconnected) {
                retval = -ENODEV;
                printk(KERN_ERR "ldusb: No device or device unplugged %d\n", 
retval);
                goto unlock_exit;
@@ -546,7 +543,7 @@ static ssize_t ld_usb_write(struct file *file, const char 
__user *buffer,
        }
 
        /* verify that the device wasn't unplugged */
-       if (dev->intf == NULL) {
+       if (dev->disconnected) {
                retval = -ENODEV;
                printk(KERN_ERR "ldusb: No device or device unplugged %d\n", 
retval);
                goto unlock_exit;
@@ -768,6 +765,9 @@ static void ld_usb_disconnect(struct usb_interface *intf)
        /* give back our minor */
        usb_deregister_dev(intf, &ld_usb_class);
 
+       usb_poison_urb(dev->interrupt_in_urb);
+       usb_poison_urb(dev->interrupt_out_urb);
+
        mutex_lock(&dev->mutex);
 
        /* if the device is not opened, then we clean up right now */
@@ -775,7 +775,7 @@ static void ld_usb_disconnect(struct usb_interface *intf)
                mutex_unlock(&dev->mutex);
                ld_usb_delete(dev);
        } else {
-               dev->intf = NULL;
+               dev->disconnected = 1;
                /* wake up pollers */
                wake_up_interruptible_all(&dev->read_wait);
                wake_up_interruptible_all(&dev->write_wait);
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index c2e2b2ea32d8..321756fc4d29 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -185,7 +185,6 @@ static const struct usb_device_id tower_table[] = {
 };
 
 MODULE_DEVICE_TABLE (usb, tower_table);
-static DEFINE_MUTEX(open_disc_mutex);
 
 #define LEGO_USB_TOWER_MINOR_BASE      160
 
@@ -197,6 +196,7 @@ struct lego_usb_tower {
        unsigned char           minor;          /* the starting minor number 
for this device */
 
        int                     open_count;     /* number of times this port 
has been opened */
+       unsigned long           disconnected:1;
 
        char*                   read_buffer;
        size_t                  read_buffer_length; /* this much came in */
@@ -296,14 +296,13 @@ static inline void lego_usb_tower_debug_data(struct 
device *dev,
  */
 static inline void tower_delete (struct lego_usb_tower *dev)
 {
-       tower_abort_transfers (dev);
-
        /* free data structures */
        usb_free_urb(dev->interrupt_in_urb);
        usb_free_urb(dev->interrupt_out_urb);
        kfree (dev->read_buffer);
        kfree (dev->interrupt_in_buffer);
        kfree (dev->interrupt_out_buffer);
+       usb_put_dev(dev->udev);
        kfree (dev);
 }
 
@@ -338,18 +337,14 @@ static int tower_open (struct inode *inode, struct file 
*file)
                goto exit;
        }
 
-       mutex_lock(&open_disc_mutex);
        dev = usb_get_intfdata(interface);
-
        if (!dev) {
-               mutex_unlock(&open_disc_mutex);
                retval = -ENODEV;
                goto exit;
        }
 
        /* lock this device */
        if (mutex_lock_interruptible(&dev->lock)) {
-               mutex_unlock(&open_disc_mutex);
                retval = -ERESTARTSYS;
                goto exit;
        }
@@ -357,12 +352,9 @@ static int tower_open (struct inode *inode, struct file 
*file)
 
        /* allow opening only once */
        if (dev->open_count) {
-               mutex_unlock(&open_disc_mutex);
                retval = -EBUSY;
                goto unlock_exit;
        }
-       dev->open_count = 1;
-       mutex_unlock(&open_disc_mutex);
 
        /* reset the tower */
        result = usb_control_msg (dev->udev,
@@ -402,13 +394,14 @@ static int tower_open (struct inode *inode, struct file 
*file)
                dev_err(&dev->udev->dev,
                        "Couldn't submit interrupt_in_urb %d\n", retval);
                dev->interrupt_in_running = 0;
-               dev->open_count = 0;
                goto unlock_exit;
        }
 
        /* save device in the file's private structure */
        file->private_data = dev;
 
+       dev->open_count = 1;
+
 unlock_exit:
        mutex_unlock(&dev->lock);
 
@@ -429,10 +422,9 @@ static int tower_release (struct inode *inode, struct file 
*file)
 
        if (dev == NULL) {
                retval = -ENODEV;
-               goto exit_nolock;
+               goto exit;
        }
 
-       mutex_lock(&open_disc_mutex);
        if (mutex_lock_interruptible(&dev->lock)) {
                retval = -ERESTARTSYS;
                goto exit;
@@ -444,7 +436,8 @@ static int tower_release (struct inode *inode, struct file 
*file)
                retval = -ENODEV;
                goto unlock_exit;
        }
-       if (dev->udev == NULL) {
+
+       if (dev->disconnected) {
                /* the device was unplugged before the file was released */
 
                /* unlock here as tower_delete frees dev */
@@ -462,10 +455,7 @@ static int tower_release (struct inode *inode, struct file 
*file)
 
 unlock_exit:
        mutex_unlock(&dev->lock);
-
 exit:
-       mutex_unlock(&open_disc_mutex);
-exit_nolock:
        return retval;
 }
 
@@ -483,10 +473,9 @@ static void tower_abort_transfers (struct lego_usb_tower 
*dev)
        if (dev->interrupt_in_running) {
                dev->interrupt_in_running = 0;
                mb();
-               if (dev->udev)
-                       usb_kill_urb (dev->interrupt_in_urb);
+               usb_kill_urb(dev->interrupt_in_urb);
        }
-       if (dev->interrupt_out_busy && dev->udev)
+       if (dev->interrupt_out_busy)
                usb_kill_urb(dev->interrupt_out_urb);
 }
 
@@ -522,7 +511,7 @@ static unsigned int tower_poll (struct file *file, 
poll_table *wait)
 
        dev = file->private_data;
 
-       if (!dev->udev)
+       if (dev->disconnected)
                return POLLERR | POLLHUP;
 
        poll_wait(file, &dev->read_wait, wait);
@@ -569,7 +558,7 @@ static ssize_t tower_read (struct file *file, char __user 
*buffer, size_t count,
        }
 
        /* verify that the device wasn't unplugged */
-       if (dev->udev == NULL) {
+       if (dev->disconnected) {
                retval = -ENODEV;
                pr_err("No device or device unplugged %d\n", retval);
                goto unlock_exit;
@@ -655,7 +644,7 @@ static ssize_t tower_write (struct file *file, const char 
__user *buffer, size_t
        }
 
        /* verify that the device wasn't unplugged */
-       if (dev->udev == NULL) {
+       if (dev->disconnected) {
                retval = -ENODEV;
                pr_err("No device or device unplugged %d\n", retval);
                goto unlock_exit;
@@ -764,7 +753,7 @@ static void tower_interrupt_in_callback (struct urb *urb)
 
 resubmit:
        /* resubmit if we're still running */
-       if (dev->interrupt_in_running && dev->udev) {
+       if (dev->interrupt_in_running) {
                retval = usb_submit_urb (dev->interrupt_in_urb, GFP_ATOMIC);
                if (retval)
                        dev_err(&dev->udev->dev,
@@ -830,8 +819,9 @@ static int tower_probe (struct usb_interface *interface, 
const struct usb_device
 
        mutex_init(&dev->lock);
 
-       dev->udev = udev;
+       dev->udev = usb_get_dev(udev);
        dev->open_count = 0;
+       dev->disconnected = 0;
 
        dev->read_buffer = NULL;
        dev->read_buffer_length = 0;
@@ -911,8 +901,10 @@ static int tower_probe (struct usb_interface *interface, 
const struct usb_device
                                  get_version_reply,
                                  sizeof(*get_version_reply),
                                  1000);
-       if (result < 0) {
-               dev_err(idev, "LEGO USB Tower get version control request 
failed\n");
+       if (result < sizeof(*get_version_reply)) {
+               if (result >= 0)
+                       result = -EIO;
+               dev_err(idev, "get version request failed: %d\n", result);
                retval = result;
                goto error;
        }
@@ -930,7 +922,6 @@ static int tower_probe (struct usb_interface *interface, 
const struct usb_device
        if (retval) {
                /* something prevented us from registering this driver */
                dev_err(idev, "Not able to get a minor for this device.\n");
-               usb_set_intfdata (interface, NULL);
                goto error;
        }
        dev->minor = interface->minor;
@@ -962,23 +953,24 @@ static void tower_disconnect (struct usb_interface 
*interface)
        int minor;
 
        dev = usb_get_intfdata (interface);
-       mutex_lock(&open_disc_mutex);
-       usb_set_intfdata (interface, NULL);
 
        minor = dev->minor;
 
-       /* give back our minor */
+       /* give back our minor and prevent further open() */
        usb_deregister_dev (interface, &tower_class);
 
+       /* stop I/O */
+       usb_poison_urb(dev->interrupt_in_urb);
+       usb_poison_urb(dev->interrupt_out_urb);
+
        mutex_lock(&dev->lock);
-       mutex_unlock(&open_disc_mutex);
 
        /* if the device is not opened, then we clean up right now */
        if (!dev->open_count) {
                mutex_unlock(&dev->lock);
                tower_delete (dev);
        } else {
-               dev->udev = NULL;
+               dev->disconnected = 1;
                /* wake up pollers */
                wake_up_interruptible_all(&dev->read_wait);
                wake_up_interruptible_all(&dev->write_wait);
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
deleted file mode 100644
index 6e761fabffca..000000000000
--- a/drivers/usb/misc/rio500.c
+++ /dev/null
@@ -1,578 +0,0 @@
-/* -*- linux-c -*- */
-
-/* 
- * Driver for USB Rio 500
- *
- * Cesar Miquel ([email protected])
- * 
- * based on hp_scanner.c by David E. Nelson ([email protected])
- * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Based upon mouse.c (Brad Keryan) and printer.c (Michael Gee).
- *
- * Changelog:
- * 30/05/2003  replaced lock/unlock kernel with up/down
- *             Daniele Bellucci  [email protected]
- * */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mutex.h>
-#include <linux/errno.h>
-#include <linux/random.h>
-#include <linux/poll.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/usb.h>
-#include <linux/wait.h>
-
-#include "rio500_usb.h"
-
-/*
- * Version Information
- */
-#define DRIVER_VERSION "v1.1"
-#define DRIVER_AUTHOR "Cesar Miquel <[email protected]>"
-#define DRIVER_DESC "USB Rio 500 driver"
-
-#define RIO_MINOR      64
-
-/* stall/wait timeout for rio */
-#define NAK_TIMEOUT (HZ)
-
-#define IBUF_SIZE 0x1000
-
-/* Size of the rio buffer */
-#define OBUF_SIZE 0x10000
-
-struct rio_usb_data {
-        struct usb_device *rio_dev;     /* init: probe_rio */
-        unsigned int ifnum;             /* Interface number of the USB device 
*/
-        int isopen;                     /* nz if open */
-        int present;                    /* Device is present on the bus */
-        char *obuf, *ibuf;              /* transfer buffers */
-        char bulk_in_ep, bulk_out_ep;   /* Endpoint assignments */
-        wait_queue_head_t wait_q;       /* for timeouts */
-       struct mutex lock;          /* general race avoidance */
-};
-
-static DEFINE_MUTEX(rio500_mutex);
-static struct rio_usb_data rio_instance;
-
-static int open_rio(struct inode *inode, struct file *file)
-{
-       struct rio_usb_data *rio = &rio_instance;
-
-       /* against disconnect() */
-       mutex_lock(&rio500_mutex);
-       mutex_lock(&(rio->lock));
-
-       if (rio->isopen || !rio->present) {
-               mutex_unlock(&(rio->lock));
-               mutex_unlock(&rio500_mutex);
-               return -EBUSY;
-       }
-       rio->isopen = 1;
-
-       init_waitqueue_head(&rio->wait_q);
-
-       mutex_unlock(&(rio->lock));
-
-       dev_info(&rio->rio_dev->dev, "Rio opened.\n");
-       mutex_unlock(&rio500_mutex);
-
-       return 0;
-}
-
-static int close_rio(struct inode *inode, struct file *file)
-{
-       struct rio_usb_data *rio = &rio_instance;
-
-       /* against disconnect() */
-       mutex_lock(&rio500_mutex);
-       mutex_lock(&(rio->lock));
-
-       rio->isopen = 0;
-       if (!rio->present) {
-               /* cleanup has been delayed */
-               kfree(rio->ibuf);
-               kfree(rio->obuf);
-               rio->ibuf = NULL;
-               rio->obuf = NULL;
-       } else {
-               dev_info(&rio->rio_dev->dev, "Rio closed.\n");
-       }
-       mutex_unlock(&(rio->lock));
-       mutex_unlock(&rio500_mutex);
-       return 0;
-}
-
-static long ioctl_rio(struct file *file, unsigned int cmd, unsigned long arg)
-{
-       struct RioCommand rio_cmd;
-       struct rio_usb_data *rio = &rio_instance;
-       void __user *data;
-       unsigned char *buffer;
-       int result, requesttype;
-       int retries;
-       int retval=0;
-
-       mutex_lock(&(rio->lock));
-        /* Sanity check to make sure rio is connected, powered, etc */
-        if (rio->present == 0 || rio->rio_dev == NULL) {
-               retval = -ENODEV;
-               goto err_out;
-       }
-
-       switch (cmd) {
-       case RIO_RECV_COMMAND:
-               data = (void __user *) arg;
-               if (data == NULL)
-                       break;
-               if (copy_from_user(&rio_cmd, data, sizeof(struct RioCommand))) {
-                       retval = -EFAULT;
-                       goto err_out;
-               }
-               if (rio_cmd.length < 0 || rio_cmd.length > PAGE_SIZE) {
-                       retval = -EINVAL;
-                       goto err_out;
-               }
-               buffer = (unsigned char *) __get_free_page(GFP_KERNEL);
-               if (buffer == NULL) {
-                       retval = -ENOMEM;
-                       goto err_out;
-               }
-               if (copy_from_user(buffer, rio_cmd.buffer, rio_cmd.length)) {
-                       retval = -EFAULT;
-                       free_page((unsigned long) buffer);
-                       goto err_out;
-               }
-
-               requesttype = rio_cmd.requesttype | USB_DIR_IN |
-                   USB_TYPE_VENDOR | USB_RECIP_DEVICE;
-               dev_dbg(&rio->rio_dev->dev,
-                       "sending command:reqtype=%0x req=%0x value=%0x 
index=%0x len=%0x\n",
-                       requesttype, rio_cmd.request, rio_cmd.value,
-                       rio_cmd.index, rio_cmd.length);
-               /* Send rio control message */
-               retries = 3;
-               while (retries) {
-                       result = usb_control_msg(rio->rio_dev,
-                                                usb_rcvctrlpipe(rio-> rio_dev, 
0),
-                                                rio_cmd.request,
-                                                requesttype,
-                                                rio_cmd.value,
-                                                rio_cmd.index, buffer,
-                                                rio_cmd.length,
-                                                
jiffies_to_msecs(rio_cmd.timeout));
-                       if (result == -ETIMEDOUT)
-                               retries--;
-                       else if (result < 0) {
-                               dev_err(&rio->rio_dev->dev,
-                                       "Error executing ioctrl. code = %d\n",
-                                       result);
-                               retries = 0;
-                       } else {
-                               dev_dbg(&rio->rio_dev->dev,
-                                       "Executed ioctl. Result = %d 
(data=%02x)\n",
-                                       result, buffer[0]);
-                               if (copy_to_user(rio_cmd.buffer, buffer,
-                                                rio_cmd.length)) {
-                                       free_page((unsigned long) buffer);
-                                       retval = -EFAULT;
-                                       goto err_out;
-                               }
-                               retries = 0;
-                       }
-
-                       /* rio_cmd.buffer contains a raw stream of single byte
-                          data which has been returned from rio.  Data is
-                          interpreted at application level.  For data that
-                          will be cast to data types longer than 1 byte, data
-                          will be little_endian and will potentially need to
-                          be swapped at the app level */
-
-               }
-               free_page((unsigned long) buffer);
-               break;
-
-       case RIO_SEND_COMMAND:
-               data = (void __user *) arg;
-               if (data == NULL)
-                       break;
-               if (copy_from_user(&rio_cmd, data, sizeof(struct RioCommand))) {
-                       retval = -EFAULT;
-                       goto err_out;
-               }
-               if (rio_cmd.length < 0 || rio_cmd.length > PAGE_SIZE) {
-                       retval = -EINVAL;
-                       goto err_out;
-               }
-               buffer = (unsigned char *) __get_free_page(GFP_KERNEL);
-               if (buffer == NULL) {
-                       retval = -ENOMEM;
-                       goto err_out;
-               }
-               if (copy_from_user(buffer, rio_cmd.buffer, rio_cmd.length)) {
-                       free_page((unsigned long)buffer);
-                       retval = -EFAULT;
-                       goto err_out;
-               }
-
-               requesttype = rio_cmd.requesttype | USB_DIR_OUT |
-                   USB_TYPE_VENDOR | USB_RECIP_DEVICE;
-               dev_dbg(&rio->rio_dev->dev,
-                       "sending command: reqtype=%0x req=%0x value=%0x 
index=%0x len=%0x\n",
-                       requesttype, rio_cmd.request, rio_cmd.value,
-                       rio_cmd.index, rio_cmd.length);
-               /* Send rio control message */
-               retries = 3;
-               while (retries) {
-                       result = usb_control_msg(rio->rio_dev,
-                                                usb_sndctrlpipe(rio-> rio_dev, 
0),
-                                                rio_cmd.request,
-                                                requesttype,
-                                                rio_cmd.value,
-                                                rio_cmd.index, buffer,
-                                                rio_cmd.length,
-                                                
jiffies_to_msecs(rio_cmd.timeout));
-                       if (result == -ETIMEDOUT)
-                               retries--;
-                       else if (result < 0) {
-                               dev_err(&rio->rio_dev->dev,
-                                       "Error executing ioctrl. code = %d\n",
-                                       result);
-                               retries = 0;
-                       } else {
-                               dev_dbg(&rio->rio_dev->dev,
-                                       "Executed ioctl. Result = %d\n", 
result);
-                               retries = 0;
-
-                       }
-
-               }
-               free_page((unsigned long) buffer);
-               break;
-
-       default:
-               retval = -ENOTTY;
-               break;
-       }
-
-
-err_out:
-       mutex_unlock(&(rio->lock));
-       return retval;
-}
-
-static ssize_t
-write_rio(struct file *file, const char __user *buffer,
-         size_t count, loff_t * ppos)
-{
-       DEFINE_WAIT(wait);
-       struct rio_usb_data *rio = &rio_instance;
-
-       unsigned long copy_size;
-       unsigned long bytes_written = 0;
-       unsigned int partial;
-
-       int result = 0;
-       int maxretry;
-       int errn = 0;
-       int intr;
-
-       intr = mutex_lock_interruptible(&(rio->lock));
-       if (intr)
-               return -EINTR;
-        /* Sanity check to make sure rio is connected, powered, etc */
-        if (rio->present == 0 || rio->rio_dev == NULL) {
-               mutex_unlock(&(rio->lock));
-               return -ENODEV;
-       }
-
-
-
-       do {
-               unsigned long thistime;
-               char *obuf = rio->obuf;
-
-               thistime = copy_size =
-                   (count >= OBUF_SIZE) ? OBUF_SIZE : count;
-               if (copy_from_user(rio->obuf, buffer, copy_size)) {
-                       errn = -EFAULT;
-                       goto error;
-               }
-               maxretry = 5;
-               while (thistime) {
-                       if (!rio->rio_dev) {
-                               errn = -ENODEV;
-                               goto error;
-                       }
-                       if (signal_pending(current)) {
-                               mutex_unlock(&(rio->lock));
-                               return bytes_written ? bytes_written : -EINTR;
-                       }
-
-                       result = usb_bulk_msg(rio->rio_dev,
-                                        usb_sndbulkpipe(rio->rio_dev, 2),
-                                        obuf, thistime, &partial, 5000);
-
-                       dev_dbg(&rio->rio_dev->dev,
-                               "write stats: result:%d thistime:%lu 
partial:%u\n",
-                               result, thistime, partial);
-
-                       if (result == -ETIMEDOUT) {     /* NAK - so hold for a 
while */
-                               if (!maxretry--) {
-                                       errn = -ETIME;
-                                       goto error;
-                               }
-                               prepare_to_wait(&rio->wait_q, &wait, 
TASK_INTERRUPTIBLE);
-                               schedule_timeout(NAK_TIMEOUT);
-                               finish_wait(&rio->wait_q, &wait);
-                               continue;
-                       } else if (!result && partial) {
-                               obuf += partial;
-                               thistime -= partial;
-                       } else
-                               break;
-               }
-               if (result) {
-                       dev_err(&rio->rio_dev->dev, "Write Whoops - %x\n",
-                               result);
-                       errn = -EIO;
-                       goto error;
-               }
-               bytes_written += copy_size;
-               count -= copy_size;
-               buffer += copy_size;
-       } while (count > 0);
-
-       mutex_unlock(&(rio->lock));
-
-       return bytes_written ? bytes_written : -EIO;
-
-error:
-       mutex_unlock(&(rio->lock));
-       return errn;
-}
-
-static ssize_t
-read_rio(struct file *file, char __user *buffer, size_t count, loff_t * ppos)
-{
-       DEFINE_WAIT(wait);
-       struct rio_usb_data *rio = &rio_instance;
-       ssize_t read_count;
-       unsigned int partial;
-       int this_read;
-       int result;
-       int maxretry = 10;
-       char *ibuf;
-       int intr;
-
-       intr = mutex_lock_interruptible(&(rio->lock));
-       if (intr)
-               return -EINTR;
-       /* Sanity check to make sure rio is connected, powered, etc */
-        if (rio->present == 0 || rio->rio_dev == NULL) {
-               mutex_unlock(&(rio->lock));
-               return -ENODEV;
-       }
-
-       ibuf = rio->ibuf;
-
-       read_count = 0;
-
-
-       while (count > 0) {
-               if (signal_pending(current)) {
-                       mutex_unlock(&(rio->lock));
-                       return read_count ? read_count : -EINTR;
-               }
-               if (!rio->rio_dev) {
-                       mutex_unlock(&(rio->lock));
-                       return -ENODEV;
-               }
-               this_read = (count >= IBUF_SIZE) ? IBUF_SIZE : count;
-
-               result = usb_bulk_msg(rio->rio_dev,
-                                     usb_rcvbulkpipe(rio->rio_dev, 1),
-                                     ibuf, this_read, &partial,
-                                     8000);
-
-               dev_dbg(&rio->rio_dev->dev,
-                       "read stats: result:%d this_read:%u partial:%u\n",
-                       result, this_read, partial);
-
-               if (partial) {
-                       count = this_read = partial;
-               } else if (result == -ETIMEDOUT || result == 15) {      /* 
FIXME: 15 ??? */
-                       if (!maxretry--) {
-                               mutex_unlock(&(rio->lock));
-                               dev_err(&rio->rio_dev->dev,
-                                       "read_rio: maxretry timeout\n");
-                               return -ETIME;
-                       }
-                       prepare_to_wait(&rio->wait_q, &wait, 
TASK_INTERRUPTIBLE);
-                       schedule_timeout(NAK_TIMEOUT);
-                       finish_wait(&rio->wait_q, &wait);
-                       continue;
-               } else if (result != -EREMOTEIO) {
-                       mutex_unlock(&(rio->lock));
-                       dev_err(&rio->rio_dev->dev,
-                               "Read Whoops - result:%u partial:%u 
this_read:%u\n",
-                               result, partial, this_read);
-                       return -EIO;
-               } else {
-                       mutex_unlock(&(rio->lock));
-                       return (0);
-               }
-
-               if (this_read) {
-                       if (copy_to_user(buffer, ibuf, this_read)) {
-                               mutex_unlock(&(rio->lock));
-                               return -EFAULT;
-                       }
-                       count -= this_read;
-                       read_count += this_read;
-                       buffer += this_read;
-               }
-       }
-       mutex_unlock(&(rio->lock));
-       return read_count;
-}
-
-static const struct file_operations usb_rio_fops = {
-       .owner =        THIS_MODULE,
-       .read =         read_rio,
-       .write =        write_rio,
-       .unlocked_ioctl = ioctl_rio,
-       .open =         open_rio,
-       .release =      close_rio,
-       .llseek =       noop_llseek,
-};
-
-static struct usb_class_driver usb_rio_class = {
-       .name =         "rio500%d",
-       .fops =         &usb_rio_fops,
-       .minor_base =   RIO_MINOR,
-};
-
-static int probe_rio(struct usb_interface *intf,
-                    const struct usb_device_id *id)
-{
-       struct usb_device *dev = interface_to_usbdev(intf);
-       struct rio_usb_data *rio = &rio_instance;
-       int retval = 0;
-
-       mutex_lock(&rio500_mutex);
-       if (rio->present) {
-               dev_info(&intf->dev, "Second USB Rio at address %d refused\n", 
dev->devnum);
-               retval = -EBUSY;
-               goto bail_out;
-       } else {
-               dev_info(&intf->dev, "USB Rio found at address %d\n", 
dev->devnum);
-       }
-
-       retval = usb_register_dev(intf, &usb_rio_class);
-       if (retval) {
-               dev_err(&dev->dev,
-                       "Not able to get a minor for this device.\n");
-               retval = -ENOMEM;
-               goto bail_out;
-       }
-
-       rio->rio_dev = dev;
-
-       if (!(rio->obuf = kmalloc(OBUF_SIZE, GFP_KERNEL))) {
-               dev_err(&dev->dev,
-                       "probe_rio: Not enough memory for the output buffer\n");
-               usb_deregister_dev(intf, &usb_rio_class);
-               retval = -ENOMEM;
-               goto bail_out;
-       }
-       dev_dbg(&intf->dev, "obuf address:%p\n", rio->obuf);
-
-       if (!(rio->ibuf = kmalloc(IBUF_SIZE, GFP_KERNEL))) {
-               dev_err(&dev->dev,
-                       "probe_rio: Not enough memory for the input buffer\n");
-               usb_deregister_dev(intf, &usb_rio_class);
-               kfree(rio->obuf);
-               retval = -ENOMEM;
-               goto bail_out;
-       }
-       dev_dbg(&intf->dev, "ibuf address:%p\n", rio->ibuf);
-
-       mutex_init(&(rio->lock));
-
-       usb_set_intfdata (intf, rio);
-       rio->present = 1;
-bail_out:
-       mutex_unlock(&rio500_mutex);
-
-       return retval;
-}
-
-static void disconnect_rio(struct usb_interface *intf)
-{
-       struct rio_usb_data *rio = usb_get_intfdata (intf);
-
-       usb_set_intfdata (intf, NULL);
-       mutex_lock(&rio500_mutex);
-       if (rio) {
-               usb_deregister_dev(intf, &usb_rio_class);
-
-               mutex_lock(&(rio->lock));
-               if (rio->isopen) {
-                       rio->isopen = 0;
-                       /* better let it finish - the release will do whats 
needed */
-                       rio->rio_dev = NULL;
-                       mutex_unlock(&(rio->lock));
-                       mutex_unlock(&rio500_mutex);
-                       return;
-               }
-               kfree(rio->ibuf);
-               kfree(rio->obuf);
-
-               dev_info(&intf->dev, "USB Rio disconnected.\n");
-
-               rio->present = 0;
-               mutex_unlock(&(rio->lock));
-       }
-       mutex_unlock(&rio500_mutex);
-}
-
-static const struct usb_device_id rio_table[] = {
-       { USB_DEVICE(0x0841, 1) },              /* Rio 500 */
-       { }                                     /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE (usb, rio_table);
-
-static struct usb_driver rio_driver = {
-       .name =         "rio500",
-       .probe =        probe_rio,
-       .disconnect =   disconnect_rio,
-       .id_table =     rio_table,
-};
-
-module_usb_driver(rio_driver);
-
-MODULE_AUTHOR( DRIVER_AUTHOR );
-MODULE_DESCRIPTION( DRIVER_DESC );
-MODULE_LICENSE("GPL");
-
diff --git a/drivers/usb/misc/rio500_usb.h b/drivers/usb/misc/rio500_usb.h
deleted file mode 100644
index 359abc98e706..000000000000
--- a/drivers/usb/misc/rio500_usb.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*  ----------------------------------------------------------------------
-
-    Copyright (C) 2000  Cesar Miquel  ([email protected])
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    ---------------------------------------------------------------------- */
-
-
-
-#define RIO_SEND_COMMAND                       0x1
-#define RIO_RECV_COMMAND                       0x2
-
-#define RIO_DIR_OUT                            0x0
-#define RIO_DIR_IN                             0x1
-
-struct RioCommand {
-       short length;
-       int request;
-       int requesttype;
-       int value;
-       int index;
-       void __user *buffer;
-       int timeout;
-};
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 9f48419abc46..35a736eaf864 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -17,6 +17,7 @@
 #include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/mutex.h>
+#include <linux/rwsem.h>
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 
@@ -56,6 +57,8 @@ struct usb_lcd {
                                                           using up all RAM */
        struct usb_anchor       submitted;              /* URBs to wait for
                                                           before suspend */
+       struct rw_semaphore     io_rwsem;
+       unsigned long           disconnected:1;
 };
 #define to_lcd_dev(d) container_of(d, struct usb_lcd, kref)
 
@@ -141,6 +144,13 @@ static ssize_t lcd_read(struct file *file, char __user * 
buffer,
 
        dev = file->private_data;
 
+       down_read(&dev->io_rwsem);
+
+       if (dev->disconnected) {
+               retval = -ENODEV;
+               goto out_up_io;
+       }
+
        /* do a blocking bulk read to get data from the device */
        retval = usb_bulk_msg(dev->udev,
                              usb_rcvbulkpipe(dev->udev,
@@ -157,6 +167,9 @@ static ssize_t lcd_read(struct file *file, char __user * 
buffer,
                        retval = bytes_read;
        }
 
+out_up_io:
+       up_read(&dev->io_rwsem);
+
        return retval;
 }
 
@@ -236,11 +249,18 @@ static ssize_t lcd_write(struct file *file, const char 
__user * user_buffer,
        if (r < 0)
                return -EINTR;
 
+       down_read(&dev->io_rwsem);
+
+       if (dev->disconnected) {
+               retval = -ENODEV;
+               goto err_up_io;
+       }
+
        /* create a urb, and a buffer for it, and copy the data to the urb */
        urb = usb_alloc_urb(0, GFP_KERNEL);
        if (!urb) {
                retval = -ENOMEM;
-               goto err_no_buf;
+               goto err_up_io;
        }
 
        buf = usb_alloc_coherent(dev->udev, count, GFP_KERNEL,
@@ -277,6 +297,7 @@ static ssize_t lcd_write(struct file *file, const char 
__user * user_buffer,
           the USB core will eventually free it entirely */
        usb_free_urb(urb);
 
+       up_read(&dev->io_rwsem);
 exit:
        return count;
 error_unanchor:
@@ -284,7 +305,8 @@ static ssize_t lcd_write(struct file *file, const char 
__user * user_buffer,
 error:
        usb_free_coherent(dev->udev, count, buf, urb->transfer_dma);
        usb_free_urb(urb);
-err_no_buf:
+err_up_io:
+       up_read(&dev->io_rwsem);
        up(&dev->limit_sem);
        return retval;
 }
@@ -325,6 +347,7 @@ static int lcd_probe(struct usb_interface *interface,
                goto error;
        kref_init(&dev->kref);
        sema_init(&dev->limit_sem, USB_LCD_CONCURRENT_WRITES);
+       init_rwsem(&dev->io_rwsem);
        init_usb_anchor(&dev->submitted);
 
        dev->udev = usb_get_dev(interface_to_usbdev(interface));
@@ -432,6 +455,12 @@ static void lcd_disconnect(struct usb_interface *interface)
        /* give back our minor */
        usb_deregister_dev(interface, &lcd_class);
 
+       down_write(&dev->io_rwsem);
+       dev->disconnected = 1;
+       up_write(&dev->io_rwsem);
+
+       usb_kill_anchored_urbs(&dev->submitted);
+
        /* decrement our usage count */
        kref_put(&dev->kref, lcd_delete);
 
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index 9744e5f996c1..2350502f9054 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -64,6 +64,7 @@ struct usb_yurex {
 
        struct kref             kref;
        struct mutex            io_mutex;
+       unsigned long           disconnected:1;
        struct fasync_struct    *async_queue;
        wait_queue_head_t       waitq;
 
@@ -111,6 +112,7 @@ static void yurex_delete(struct kref *kref)
                                dev->int_buffer, dev->urb->transfer_dma);
                usb_free_urb(dev->urb);
        }
+       usb_put_intf(dev->interface);
        usb_put_dev(dev->udev);
        kfree(dev);
 }
@@ -136,6 +138,7 @@ static void yurex_interrupt(struct urb *urb)
        switch (status) {
        case 0: /*success*/
                break;
+       /* The device is terminated or messed up, give up */
        case -EOVERFLOW:
                dev_err(&dev->interface->dev,
                        "%s - overflow with length %d, actual length is %d\n",
@@ -144,12 +147,13 @@ static void yurex_interrupt(struct urb *urb)
        case -ENOENT:
        case -ESHUTDOWN:
        case -EILSEQ:
-               /* The device is terminated, clean up */
+       case -EPROTO:
+       case -ETIME:
                return;
        default:
                dev_err(&dev->interface->dev,
                        "%s - unknown status received: %d\n", __func__, status);
-               goto exit;
+               return;
        }
 
        /* handle received message */
@@ -181,7 +185,6 @@ static void yurex_interrupt(struct urb *urb)
                break;
        }
 
-exit:
        retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
        if (retval) {
                dev_err(&dev->interface->dev, "%s - usb_submit_urb failed: 
%d\n",
@@ -208,7 +211,7 @@ static int yurex_probe(struct usb_interface *interface, 
const struct usb_device_
        init_waitqueue_head(&dev->waitq);
 
        dev->udev = usb_get_dev(interface_to_usbdev(interface));
-       dev->interface = interface;
+       dev->interface = usb_get_intf(interface);
 
        /* set up the endpoint information */
        iface_desc = interface->cur_altsetting;
@@ -325,8 +328,9 @@ static void yurex_disconnect(struct usb_interface 
*interface)
 
        /* prevent more I/O from starting */
        usb_poison_urb(dev->urb);
+       usb_poison_urb(dev->cntl_urb);
        mutex_lock(&dev->io_mutex);
-       dev->interface = NULL;
+       dev->disconnected = 1;
        mutex_unlock(&dev->io_mutex);
 
        /* wakeup waiters */
@@ -414,7 +418,7 @@ static ssize_t yurex_read(struct file *file, char __user 
*buffer, size_t count,
        dev = file->private_data;
 
        mutex_lock(&dev->io_mutex);
-       if (!dev->interface) {          /* already disconnected */
+       if (dev->disconnected) {                /* already disconnected */
                mutex_unlock(&dev->io_mutex);
                return -ENODEV;
        }
@@ -449,7 +453,7 @@ static ssize_t yurex_write(struct file *file, const char 
__user *user_buffer,
                goto error;
 
        mutex_lock(&dev->io_mutex);
-       if (!dev->interface) {          /* already disconnected */
+       if (dev->disconnected) {                /* already disconnected */
                mutex_unlock(&dev->io_mutex);
                retval = -ENODEV;
                goto error;
diff --git a/drivers/usb/renesas_usbhs/common.h 
b/drivers/usb/renesas_usbhs/common.h
index 8c5fc12ad778..b8620aa6b72e 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -213,6 +213,7 @@ struct usbhs_priv;
 /* DCPCTR */
 #define BSTS           (1 << 15)       /* Buffer Status */
 #define SUREQ          (1 << 14)       /* Sending SETUP Token */
+#define INBUFM         (1 << 14)       /* (PIPEnCTR) Transfer Buffer Monitor */
 #define CSSTS          (1 << 12)       /* CSSTS Status */
 #define        ACLRM           (1 << 9)        /* Buffer Auto-Clear Mode */
 #define SQCLR          (1 << 8)        /* Toggle Bit Clear */
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 696560529e6a..f6a1ae8abb21 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -98,7 +98,7 @@ static void __usbhsf_pkt_del(struct usbhs_pkt *pkt)
        list_del_init(&pkt->node);
 }
 
-static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe)
+struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe)
 {
        if (list_empty(&pipe->list))
                return NULL;
diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h
index 8b98507d7abc..c1fb39252b23 100644
--- a/drivers/usb/renesas_usbhs/fifo.h
+++ b/drivers/usb/renesas_usbhs/fifo.h
@@ -106,5 +106,6 @@ void usbhs_pkt_push(struct usbhs_pipe *pipe, struct 
usbhs_pkt *pkt,
                    void *buf, int len, int zero, int sequence);
 struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt 
*pkt);
 void usbhs_pkt_start(struct usbhs_pipe *pipe);
+struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe);
 
 #endif /* RENESAS_USB_FIFO_H */
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c 
b/drivers/usb/renesas_usbhs/mod_gadget.c
index 5984fb134cf4..6898ca1ef98c 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -729,8 +729,7 @@ static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, 
int halt, int wedge)
        struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
        struct device *dev = usbhsg_gpriv_to_dev(gpriv);
        unsigned long flags;
-
-       usbhsg_pipe_disable(uep);
+       int ret = 0;
 
        dev_dbg(dev, "set halt %d (pipe %d)\n",
                halt, usbhs_pipe_number(pipe));
@@ -738,6 +737,18 @@ static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, 
int halt, int wedge)
        /********************  spin lock ********************/
        usbhs_lock(priv, flags);
 
+       /*
+        * According to usb_ep_set_halt()'s description, this function should
+        * return -EAGAIN if the IN endpoint has any queue or data. Note
+        * that the usbhs_pipe_is_dir_in() returns false if the pipe is an
+        * IN endpoint in the gadget mode.
+        */
+       if (!usbhs_pipe_is_dir_in(pipe) && (__usbhsf_pkt_get(pipe) ||
+           usbhs_pipe_contains_transmittable_data(pipe))) {
+               ret = -EAGAIN;
+               goto out;
+       }
+
        if (halt)
                usbhs_pipe_stall(pipe);
        else
@@ -748,10 +759,11 @@ static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, 
int halt, int wedge)
        else
                usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE);
 
+out:
        usbhs_unlock(priv, flags);
        /********************  spin unlock ******************/
 
-       return 0;
+       return ret;
 }
 
 static int usbhsg_ep_set_halt(struct usb_ep *ep, int value)
diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index 9396a8c14af8..8db4ca7d5d45 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -286,6 +286,21 @@ int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe)
        return -EBUSY;
 }
 
+bool usbhs_pipe_contains_transmittable_data(struct usbhs_pipe *pipe)
+{
+       u16 val;
+
+       /* Do not support for DCP pipe */
+       if (usbhs_pipe_is_dcp(pipe))
+               return false;
+
+       val = usbhsp_pipectrl_get(pipe);
+       if (val & INBUFM)
+               return true;
+
+       return false;
+}
+
 /*
  *             PID ctrl
  */
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h
index 95185fdb29b1..e4144704ee02 100644
--- a/drivers/usb/renesas_usbhs/pipe.h
+++ b/drivers/usb/renesas_usbhs/pipe.h
@@ -90,6 +90,7 @@ void usbhs_pipe_init(struct usbhs_priv *priv,
 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe);
 void usbhs_pipe_clear(struct usbhs_pipe *pipe);
 int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe);
+bool usbhs_pipe_contains_transmittable_data(struct usbhs_pipe *pipe);
 void usbhs_pipe_enable(struct usbhs_pipe *pipe);
 void usbhs_pipe_disable(struct usbhs_pipe *pipe);
 void usbhs_pipe_stall(struct usbhs_pipe *pipe);
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 63ff1a4f2e41..f94d11615b45 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1025,6 +1025,9 @@ static const struct usb_device_id id_table_combined[] = {
        /* EZPrototypes devices */
        { USB_DEVICE(EZPROTOTYPES_VID, HJELMSLUND_USB485_ISO_PID) },
        { USB_DEVICE_INTERFACE_NUMBER(UNJO_VID, UNJO_ISODEBUG_V1_PID, 1) },
+       /* Sienna devices */
+       { USB_DEVICE(FTDI_VID, FTDI_SIENNA_PID) },
+       { USB_DEVICE(ECHELON_VID, ECHELON_U20_PID) },
        { }                                     /* Terminating entry */
 };
 
diff --git a/drivers/usb/serial/ftdi_sio_ids.h 
b/drivers/usb/serial/ftdi_sio_ids.h
index ed6b36674c15..2e8161f79b49 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -38,6 +38,9 @@
 
 #define FTDI_LUMEL_PD12_PID    0x6002
 
+/* Sienna Serial Interface by Secyourit GmbH */
+#define FTDI_SIENNA_PID                0x8348
+
 /* Cyber Cortex AV by Fabulous Silicon (http://fabuloussilicon.com) */
 #define CYBER_CORTEX_AV_PID    0x8698
 
@@ -687,6 +690,12 @@
 #define BANDB_TTL3USB9M_PID    0xAC50
 #define BANDB_ZZ_PROG1_USB_PID 0xBA02
 
+/*
+ * Echelon USB Serial Interface
+ */
+#define ECHELON_VID            0x0920
+#define ECHELON_U20_PID                0x7500
+
 /*
  * Intrepid Control Systems (http://www.intrepidcs.com/) ValueCAN and NeoVI
  */
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 1f9414bdd649..185ef1d8c6cd 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1250,8 +1250,8 @@ static struct urb *keyspan_setup_urb(struct usb_serial 
*serial, int endpoint,
 
        ep_desc = find_ep(serial, endpoint);
        if (!ep_desc) {
-               /* leak the urb, something's wrong and the callers don't care */
-               return urb;
+               usb_free_urb(urb);
+               return NULL;
        }
        if (usb_endpoint_xfer_int(ep_desc)) {
                ep_type_name = "INT";
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 1bceb11f3782..00a6e62a68a8 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -421,6 +421,7 @@ static void option_instat_callback(struct urb *urb);
 #define CINTERION_PRODUCT_PH8_AUDIO            0x0083
 #define CINTERION_PRODUCT_AHXX_2RMNET          0x0084
 #define CINTERION_PRODUCT_AHXX_AUDIO           0x0085
+#define CINTERION_PRODUCT_CLS8                 0x00b0
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID                     0x0b3c
@@ -1149,6 +1150,14 @@ static const struct usb_device_id option_ids[] = {
          .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
        { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 
TELIT_PRODUCT_LE922_USBCFG5, 0xff),
          .driver_info = RSVD(0) | RSVD(1) | NCTRL(2) | RSVD(3) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1050, 0xff),    /* 
Telit FN980 (rmnet) */
+         .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1051, 0xff),    /* 
Telit FN980 (MBIM) */
+         .driver_info = NCTRL(0) | RSVD(1) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1052, 0xff),    /* 
Telit FN980 (RNDIS) */
+         .driver_info = NCTRL(2) | RSVD(3) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1053, 0xff),    /* 
Telit FN980 (ECM) */
+         .driver_info = NCTRL(0) | RSVD(1) },
        { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
          .driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
        { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
@@ -1842,6 +1851,8 @@ static const struct usb_device_id option_ids[] = {
          .driver_info = RSVD(4) },
        { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, 
CINTERION_PRODUCT_AHXX_2RMNET, 0xff) },
        { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, 
CINTERION_PRODUCT_AHXX_AUDIO, 0xff) },
+       { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, 
CINTERION_PRODUCT_CLS8, 0xff),
+         .driver_info = RSVD(0) | RSVD(4) },
        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) },
        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
        { USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 4a037b4a79cf..a894c0fdc04b 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -315,10 +315,7 @@ static void serial_cleanup(struct tty_struct *tty)
        serial = port->serial;
        owner = serial->type->driver.owner;
 
-       mutex_lock(&serial->disc_mutex);
-       if (!serial->disconnected)
-               usb_autopm_put_interface(serial->interface);
-       mutex_unlock(&serial->disc_mutex);
+       usb_autopm_put_interface(serial->interface);
 
        usb_serial_put(serial);
        module_put(owner);
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index 5133a0792eb0..f24374486623 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -63,6 +63,7 @@ struct usb_skel {
        spinlock_t              err_lock;               /* lock for errors */
        struct kref             kref;
        struct mutex            io_mutex;               /* synchronize I/O with 
disconnect */
+       unsigned long           disconnected:1;
        wait_queue_head_t       bulk_in_wait;           /* to wait for an 
ongoing read */
 };
 #define to_skel_dev(d) container_of(d, struct usb_skel, kref)
@@ -75,6 +76,7 @@ static void skel_delete(struct kref *kref)
        struct usb_skel *dev = to_skel_dev(kref);
 
        usb_free_urb(dev->bulk_in_urb);
+       usb_put_intf(dev->interface);
        usb_put_dev(dev->udev);
        kfree(dev->bulk_in_buffer);
        kfree(dev);
@@ -126,10 +128,7 @@ static int skel_release(struct inode *inode, struct file 
*file)
                return -ENODEV;
 
        /* allow the device to be autosuspended */
-       mutex_lock(&dev->io_mutex);
-       if (dev->interface)
-               usb_autopm_put_interface(dev->interface);
-       mutex_unlock(&dev->io_mutex);
+       usb_autopm_put_interface(dev->interface);
 
        /* decrement the count on our device */
        kref_put(&dev->kref, skel_delete);
@@ -241,7 +240,7 @@ static ssize_t skel_read(struct file *file, char *buffer, 
size_t count,
        if (rv < 0)
                return rv;
 
-       if (!dev->interface) {          /* disconnect() was called */
+       if (dev->disconnected) {                /* disconnect() was called */
                rv = -ENODEV;
                goto exit;
        }
@@ -422,7 +421,7 @@ static ssize_t skel_write(struct file *file, const char 
*user_buffer,
 
        /* this lock makes sure we don't submit URBs to gone devices */
        mutex_lock(&dev->io_mutex);
-       if (!dev->interface) {          /* disconnect() was called */
+       if (dev->disconnected) {                /* disconnect() was called */
                mutex_unlock(&dev->io_mutex);
                retval = -ENODEV;
                goto error;
@@ -509,7 +508,7 @@ static int skel_probe(struct usb_interface *interface,
        init_waitqueue_head(&dev->bulk_in_wait);
 
        dev->udev = usb_get_dev(interface_to_usbdev(interface));
-       dev->interface = interface;
+       dev->interface = usb_get_intf(interface);
 
        /* set up the endpoint information */
        /* use only the first bulk-in and bulk-out endpoints */
@@ -582,7 +581,7 @@ static void skel_disconnect(struct usb_interface *interface)
 
        /* prevent more I/O from starting */
        mutex_lock(&dev->io_mutex);
-       dev->interface = NULL;
+       dev->disconnected = 1;
        mutex_unlock(&dev->io_mutex);
 
        usb_kill_anchored_urbs(&dev->submitted);
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 5098982e1a58..e5c162b05376 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -58,7 +58,7 @@
 
 #define IMX2_WDT_WMCR          0x08            /* Misc Register */
 
-#define IMX2_WDT_MAX_TIME      128
+#define IMX2_WDT_MAX_TIME      128U
 #define IMX2_WDT_DEFAULT_TIME  60              /* in seconds */
 
 #define WDOG_SEC_TO_COUNT(s)   ((s * 2 - 1) << 8)
@@ -183,7 +183,7 @@ static int imx2_wdt_set_timeout(struct watchdog_device 
*wdog,
 {
        unsigned int actual;
 
-       actual = min(new_timeout, wdog->max_hw_heartbeat_ms * 1000);
+       actual = min(new_timeout, IMX2_WDT_MAX_TIME);
        __imx2_wdt_set_timeout(wdog, actual);
        wdog->timeout = new_timeout;
        return 0;
diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c
index 7494dbeb4409..db58aaa4dc59 100644
--- a/drivers/xen/pci.c
+++ b/drivers/xen/pci.c
@@ -29,6 +29,8 @@
 #include "../pci/pci.h"
 #ifdef CONFIG_PCI_MMCONFIG
 #include <asm/pci_x86.h>
+
+static int xen_mcfg_late(void);
 #endif
 
 static bool __read_mostly pci_seg_supported = true;
@@ -40,7 +42,18 @@ static int xen_add_device(struct device *dev)
 #ifdef CONFIG_PCI_IOV
        struct pci_dev *physfn = pci_dev->physfn;
 #endif
-
+#ifdef CONFIG_PCI_MMCONFIG
+       static bool pci_mcfg_reserved = false;
+       /*
+        * Reserve MCFG areas in Xen on first invocation due to this being
+        * potentially called from inside of acpi_init immediately after
+        * MCFG table has been finally parsed.
+        */
+       if (!pci_mcfg_reserved) {
+               xen_mcfg_late();
+               pci_mcfg_reserved = true;
+       }
+#endif
        if (pci_seg_supported) {
                struct {
                        struct physdev_pci_device_add add;
@@ -213,7 +226,7 @@ static int __init register_xen_pci_notifier(void)
 arch_initcall(register_xen_pci_notifier);
 
 #ifdef CONFIG_PCI_MMCONFIG
-static int __init xen_mcfg_late(void)
+static int xen_mcfg_late(void)
 {
        struct pci_mmcfg_region *cfg;
        int rc;
@@ -252,8 +265,4 @@ static int __init xen_mcfg_late(void)
        }
        return 0;
 }
-/*
- * Needs to be done after acpi_init which are subsys_initcall.
- */
-subsys_initcall_sync(xen_mcfg_late);
 #endif
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 79ff727254bb..e963b83afc71 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -528,6 +528,7 @@ v9fs_mmap_file_mmap(struct file *filp, struct 
vm_area_struct *vma)
        v9inode = V9FS_I(inode);
        mutex_lock(&v9inode->v_mutex);
        if (!v9inode->writeback_fid &&
+           (vma->vm_flags & VM_SHARED) &&
            (vma->vm_flags & VM_WRITE)) {
                /*
                 * clone a fid and add it to writeback_fid
@@ -629,6 +630,8 @@ static void v9fs_mmap_vm_close(struct vm_area_struct *vma)
                        (vma->vm_end - vma->vm_start - 1),
        };
 
+       if (!(vma->vm_flags & VM_SHARED))
+               return;
 
        p9_debug(P9_DEBUG_VFS, "9p VMA close, %p, flushing", vma);
 
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 339fdf6355df..7fcddaaca8a5 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -800,7 +800,12 @@ static int fill_inode(struct inode *inode, struct page 
*locked_page,
        ci->i_version = le64_to_cpu(info->version);
        inode->i_version++;
        inode->i_rdev = le32_to_cpu(info->rdev);
-       inode->i_blkbits = fls(le32_to_cpu(info->layout.fl_stripe_unit)) - 1;
+       /* directories have fl_stripe_unit set to zero */
+       if (le32_to_cpu(info->layout.fl_stripe_unit))
+               inode->i_blkbits =
+                       fls(le32_to_cpu(info->layout.fl_stripe_unit)) - 1;
+       else
+               inode->i_blkbits = CEPH_BLOCK_SHIFT;
 
        if ((new_version || (new_issued & CEPH_CAP_AUTH_SHARED)) &&
            (issued & CEPH_CAP_AUTH_EXCL) == 0) {
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 67cb9d078bfa..3139fbd4c34e 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3410,7 +3410,9 @@ static void delayed_work(struct work_struct *work)
                                pr_info("mds%d hung\n", s->s_mds);
                        }
                }
-               if (s->s_state < CEPH_MDS_SESSION_OPEN) {
+               if (s->s_state == CEPH_MDS_SESSION_NEW ||
+                   s->s_state == CEPH_MDS_SESSION_RESTARTING ||
+                   s->s_state == CEPH_MDS_SESSION_REJECTED) {
                        /* this mds is failed or recovering, just wait */
                        ceph_put_mds_session(s);
                        continue;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index e98e24eaa6a8..d6475dcce9df 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -830,10 +830,16 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry 
*direntry,
 static int
 cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
 {
+       struct inode *inode;
+
        if (flags & LOOKUP_RCU)
                return -ECHILD;
 
        if (d_really_is_positive(direntry)) {
+               inode = d_inode(direntry);
+               if ((flags & LOOKUP_REVAL) && !CIFS_CACHE_READ(CIFS_I(inode)))
+                       CIFS_I(inode)->time = 0; /* force reval */
+
                if (cifs_revalidate_dentry(direntry))
                        return 0;
                else {
@@ -844,7 +850,7 @@ cifs_d_revalidate(struct dentry *direntry, unsigned int 
flags)
                         * attributes will have been updated by
                         * cifs_revalidate_dentry().
                         */
-                       if (IS_AUTOMOUNT(d_inode(direntry)) &&
+                       if (IS_AUTOMOUNT(inode) &&
                           !(direntry->d_flags & DCACHE_NEED_AUTOMOUNT)) {
                                spin_lock(&direntry->d_lock);
                                direntry->d_flags |= DCACHE_NEED_AUTOMOUNT;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index df3ee0b6264f..3504ef015493 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -252,6 +252,12 @@ cifs_nt_open(char *full_path, struct inode *inode, struct 
cifs_sb_info *cifs_sb,
                rc = cifs_get_inode_info(&inode, full_path, buf, inode->i_sb,
                                         xid, fid);
 
+       if (rc) {
+               server->ops->close(xid, tcon, fid);
+               if (rc == -ESTALE)
+                       rc = -EOPENSTALE;
+       }
+
 out:
        kfree(buf);
        return rc;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 786f67bee43a..b1c0961e6b3f 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -405,6 +405,7 @@ int cifs_get_inode_info_unix(struct inode **pinode,
                /* if uniqueid is different, return error */
                if (unlikely(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM &&
                    CIFS_I(*pinode)->uniqueid != fattr.cf_uniqueid)) {
+                       CIFS_I(*pinode)->time = 0; /* force reval */
                        rc = -ESTALE;
                        goto cgiiu_exit;
                }
@@ -412,6 +413,7 @@ int cifs_get_inode_info_unix(struct inode **pinode,
                /* if filetype is different, return error */
                if (unlikely(((*pinode)->i_mode & S_IFMT) !=
                    (fattr.cf_mode & S_IFMT))) {
+                       CIFS_I(*pinode)->time = 0; /* force reval */
                        rc = -ESTALE;
                        goto cgiiu_exit;
                }
@@ -917,6 +919,7 @@ cifs_get_inode_info(struct inode **inode, const char 
*full_path,
                /* if uniqueid is different, return error */
                if (unlikely(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM &&
                    CIFS_I(*inode)->uniqueid != fattr.cf_uniqueid)) {
+                       CIFS_I(*inode)->time = 0; /* force reval */
                        rc = -ESTALE;
                        goto cgii_exit;
                }
@@ -924,6 +927,7 @@ cifs_get_inode_info(struct inode **inode, const char 
*full_path,
                /* if filetype is different, return error */
                if (unlikely(((*inode)->i_mode & S_IFMT) !=
                    (fattr.cf_mode & S_IFMT))) {
+                       CIFS_I(*inode)->time = 0; /* force reval */
                        rc = -ESTALE;
                        goto cgii_exit;
                }
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index c5b6b7165489..d9aba9700726 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -513,6 +513,7 @@ static int cuse_channel_open(struct inode *inode, struct 
file *file)
        rc = cuse_send_init(cc);
        if (rc) {
                fuse_dev_free(fud);
+               fuse_conn_put(&cc->fc);
                return rc;
        }
        file->private_data = fud;
diff --git a/fs/libfs.c b/fs/libfs.c
index 9588780ad43e..9dc0e1ed8228 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -85,58 +85,47 @@ int dcache_dir_close(struct inode *inode, struct file *file)
 EXPORT_SYMBOL(dcache_dir_close);
 
 /* parent is locked at least shared */
-static struct dentry *next_positive(struct dentry *parent,
-                                   struct list_head *from,
-                                   int count)
+/*
+ * Returns an element of siblings' list.
+ * We are looking for <count>th positive after <p>; if
+ * found, dentry is grabbed and passed to caller via *<res>.
+ * If no such element exists, the anchor of list is returned
+ * and *<res> is set to NULL.
+ */
+static struct list_head *scan_positives(struct dentry *cursor,
+                                       struct list_head *p,
+                                       loff_t count,
+                                       struct dentry **res)
 {
-       unsigned *seq = &parent->d_inode->i_dir_seq, n;
-       struct dentry *res;
-       struct list_head *p;
-       bool skipped;
-       int i;
+       struct dentry *dentry = cursor->d_parent, *found = NULL;
 
-retry:
-       i = count;
-       skipped = false;
-       n = smp_load_acquire(seq) & ~1;
-       res = NULL;
-       rcu_read_lock();
-       for (p = from->next; p != &parent->d_subdirs; p = p->next) {
+       spin_lock(&dentry->d_lock);
+       while ((p = p->next) != &dentry->d_subdirs) {
                struct dentry *d = list_entry(p, struct dentry, d_child);
-               if (!simple_positive(d)) {
-                       skipped = true;
-               } else if (!--i) {
-                       res = d;
-                       break;
+               // we must at least skip cursors, to avoid livelocks
+               if (d->d_flags & DCACHE_DENTRY_CURSOR)
+                       continue;
+               if (simple_positive(d) && !--count) {
+                       spin_lock_nested(&d->d_lock, DENTRY_D_LOCK_NESTED);
+                       if (simple_positive(d))
+                               found = dget_dlock(d);
+                       spin_unlock(&d->d_lock);
+                       if (likely(found))
+                               break;
+                       count = 1;
+               }
+               if (need_resched()) {
+                       list_move(&cursor->d_child, p);
+                       p = &cursor->d_child;
+                       spin_unlock(&dentry->d_lock);
+                       cond_resched();
+                       spin_lock(&dentry->d_lock);
                }
        }
-       rcu_read_unlock();
-       if (skipped) {
-               smp_rmb();
-               if (unlikely(*seq != n))
-                       goto retry;
-       }
-       return res;
-}
-
-static void move_cursor(struct dentry *cursor, struct list_head *after)
-{
-       struct dentry *parent = cursor->d_parent;
-       unsigned n, *seq = &parent->d_inode->i_dir_seq;
-       spin_lock(&parent->d_lock);
-       for (;;) {
-               n = *seq;
-               if (!(n & 1) && cmpxchg(seq, n, n + 1) == n)
-                       break;
-               cpu_relax();
-       }
-       __list_del(cursor->d_child.prev, cursor->d_child.next);
-       if (after)
-               list_add(&cursor->d_child, after);
-       else
-               list_add_tail(&cursor->d_child, &parent->d_subdirs);
-       smp_store_release(seq, n + 2);
-       spin_unlock(&parent->d_lock);
+       spin_unlock(&dentry->d_lock);
+       dput(*res);
+       *res = found;
+       return p;
 }
 
 loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
@@ -152,17 +141,28 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, 
int whence)
                        return -EINVAL;
        }
        if (offset != file->f_pos) {
+               struct dentry *cursor = file->private_data;
+               struct dentry *to = NULL;
+               struct list_head *p;
+
                file->f_pos = offset;
-               if (file->f_pos >= 2) {
-                       struct dentry *cursor = file->private_data;
-                       struct dentry *to;
-                       loff_t n = file->f_pos - 2;
-
-                       inode_lock_shared(dentry->d_inode);
-                       to = next_positive(dentry, &dentry->d_subdirs, n);
-                       move_cursor(cursor, to ? &to->d_child : NULL);
-                       inode_unlock_shared(dentry->d_inode);
+               inode_lock_shared(dentry->d_inode);
+
+               if (file->f_pos > 2) {
+                       p = scan_positives(cursor, &dentry->d_subdirs,
+                                          file->f_pos - 2, &to);
+                       spin_lock(&dentry->d_lock);
+                       list_move(&cursor->d_child, p);
+                       spin_unlock(&dentry->d_lock);
+               } else {
+                       spin_lock(&dentry->d_lock);
+                       list_del_init(&cursor->d_child);
+                       spin_unlock(&dentry->d_lock);
                }
+
+               dput(to);
+
+               inode_unlock_shared(dentry->d_inode);
        }
        return offset;
 }
@@ -184,25 +184,29 @@ int dcache_readdir(struct file *file, struct dir_context 
*ctx)
 {
        struct dentry *dentry = file->f_path.dentry;
        struct dentry *cursor = file->private_data;
-       struct list_head *p = &cursor->d_child;
-       struct dentry *next;
-       bool moved = false;
+       struct list_head *anchor = &dentry->d_subdirs;
+       struct dentry *next = NULL;
+       struct list_head *p;
 
        if (!dir_emit_dots(file, ctx))
                return 0;
 
        if (ctx->pos == 2)
-               p = &dentry->d_subdirs;
-       while ((next = next_positive(dentry, p, 1)) != NULL) {
+               p = anchor;
+       else
+               p = &cursor->d_child;
+
+       while ((p = scan_positives(cursor, p, 1, &next)) != anchor) {
                if (!dir_emit(ctx, next->d_name.name, next->d_name.len,
                              d_inode(next)->i_ino, dt_type(d_inode(next))))
                        break;
-               moved = true;
-               p = &next->d_child;
                ctx->pos++;
        }
-       if (moved)
-               move_cursor(cursor, p);
+       spin_lock(&dentry->d_lock);
+       list_move_tail(&cursor->d_child, p);
+       spin_unlock(&dentry->d_lock);
+       dput(next);
+
        return 0;
 }
 EXPORT_SYMBOL(dcache_readdir);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 5e2724a928ed..d7f8d5ce30e3 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1123,7 +1123,7 @@ static void encode_attrs(struct xdr_stream *xdr, const 
struct iattr *iap,
                } else
                        *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
        }
-       if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {
+       if (label && (bmval[2] & FATTR4_WORD2_SECURITY_LABEL)) {
                *p++ = cpu_to_be32(label->lfs);
                *p++ = cpu_to_be32(label->pi);
                *p++ = cpu_to_be32(label->len);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 67d589e0a49f..b16ca13c11d5 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1674,6 +1674,7 @@ xfs_fs_fill_super(
  out_close_devices:
        xfs_close_devices(mp);
  out_free_fsname:
+       sb->s_fs_info = NULL;
        xfs_free_fsname(mp);
        kfree(mp);
  out:
@@ -1691,6 +1692,10 @@ xfs_fs_put_super(
 {
        struct xfs_mount        *mp = XFS_M(sb);
 
+       /* if ->fill_super failed, we have no mount to tear down */
+       if (!sb->s_fs_info)
+               return;
+
        xfs_notice(mp, "Unmounting Filesystem");
        xfs_filestream_unmount(mp);
        xfs_unmountfs(mp);
@@ -1700,6 +1705,8 @@ xfs_fs_put_super(
        xfs_destroy_percpu_counters(mp);
        xfs_destroy_mount_workqueues(mp);
        xfs_close_devices(mp);
+
+       sb->s_fs_info = NULL;
        xfs_free_fsname(mp);
        kfree(mp);
 }
@@ -1719,6 +1726,9 @@ xfs_fs_nr_cached_objects(
        struct super_block      *sb,
        struct shrink_control   *sc)
 {
+       /* Paranoia: catch incorrect calls during mount setup or teardown */
+       if (WARN_ON_ONCE(!sb->s_fs_info))
+               return 0;
        return xfs_reclaim_inodes_count(XFS_M(sb));
 }
 
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index a80516fd65c8..d3417c18ee2f 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2630,4 +2630,57 @@ static inline bool ieee80211_action_contains_tpc(struct 
sk_buff *skb)
        return true;
 }
 
+struct element {
+       u8 id;
+       u8 datalen;
+       u8 data[];
+} __packed;
+
+/* element iteration helpers */
+#define for_each_element(_elem, _data, _datalen)                       \
+       for (_elem = (const struct element *)(_data);                   \
+            (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
+               (int)sizeof(*_elem) &&                                  \
+            (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
+               (int)sizeof(*_elem) + _elem->datalen;                   \
+            _elem = (const struct element *)(_elem->data + _elem->datalen))
+
+#define for_each_element_id(element, _id, data, datalen)               \
+       for_each_element(element, data, datalen)                        \
+               if (element->id == (_id))
+
+#define for_each_element_extid(element, extid, data, datalen)          \
+       for_each_element(element, data, datalen)                        \
+               if (element->id == WLAN_EID_EXTENSION &&                \
+                   element->datalen > 0 &&                             \
+                   element->data[0] == (extid))
+
+#define for_each_subelement(sub, element)                              \
+       for_each_element(sub, (element)->data, (element)->datalen)
+
+#define for_each_subelement_id(sub, id, element)                       \
+       for_each_element_id(sub, id, (element)->data, (element)->datalen)
+
+#define for_each_subelement_extid(sub, extid, element)                 \
+       for_each_element_extid(sub, extid, (element)->data, (element)->datalen)
+
+/**
+ * for_each_element_completed - determine if element parsing consumed all data
+ * @element: element pointer after for_each_element() or friends
+ * @data: same data pointer as passed to for_each_element() or friends
+ * @datalen: same data length as passed to for_each_element() or friends
+ *
+ * This function returns %true if all the data was parsed or considered
+ * while walking the elements. Only use this if your for_each_element()
+ * loop cannot be broken out of, otherwise it always returns %false.
+ *
+ * If some data was malformed, this returns %false since the last parsed
+ * element will not fill the whole remaining data.
+ */
+static inline bool for_each_element_completed(const struct element *element,
+                                             const void *data, size_t datalen)
+{
+       return (const u8 *)element == (const u8 *)data + datalen;
+}
+
 #endif /* LINUX_IEEE80211_H */
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index f60d755f7ac6..ab9fa975f880 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -339,6 +339,8 @@ struct device;
 #define SND_SOC_DAPM_WILL_PMD   0x80    /* called at start of sequence */
 #define SND_SOC_DAPM_PRE_POST_PMD \
                                (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
+#define SND_SOC_DAPM_PRE_POST_PMU \
+                               (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)
 
 /* convenience event type detection */
 #define SND_SOC_DAPM_EVENT_ON(e)       \
diff --git a/kernel/elfcore.c b/kernel/elfcore.c
index e556751d15d9..a2b29b9bdfcb 100644
--- a/kernel/elfcore.c
+++ b/kernel/elfcore.c
@@ -2,6 +2,7 @@
 #include <linux/fs.h>
 #include <linux/mm.h>
 #include <linux/binfmts.h>
+#include <linux/elfcore.h>
 
 Elf_Half __weak elf_core_extra_phdrs(void)
 {
diff --git a/kernel/fork.c b/kernel/fork.c
index 1c21d13a3874..288504431a53 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2356,7 +2356,7 @@ int sysctl_max_threads(struct ctl_table *table, int write,
        struct ctl_table t;
        int ret;
        int threads = max_threads;
-       int min = MIN_THREADS;
+       int min = 1;
        int max = MAX_THREADS;
 
        t = *table;
@@ -2368,7 +2368,7 @@ int sysctl_max_threads(struct ctl_table *table, int write,
        if (ret || !write)
                return ret;
 
-       set_max_threads(threads);
+       max_threads = threads;
 
        return 0;
 }
diff --git a/kernel/panic.c b/kernel/panic.c
index eb7bc6d60927..89198dca0180 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -144,6 +144,7 @@ void panic(const char *fmt, ...)
         * after setting panic_cpu) from invoking panic() again.
         */
        local_irq_disable();
+       preempt_disable_notrace();
 
        /*
         * It's possible to come here directly from a panic-assertion and
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 63be0bcfa286..82cec9a666e7 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1162,7 +1162,8 @@ static int __set_cpus_allowed_ptr(struct task_struct *p,
        if (cpumask_equal(&p->cpus_allowed, new_mask))
                goto out;
 
-       if (!cpumask_intersects(new_mask, cpu_valid_mask)) {
+       dest_cpu = cpumask_any_and(cpu_valid_mask, new_mask);
+       if (dest_cpu >= nr_cpu_ids) {
                ret = -EINVAL;
                goto out;
        }
@@ -1183,7 +1184,6 @@ static int __set_cpus_allowed_ptr(struct task_struct *p,
        if (cpumask_test_cpu(task_cpu(p), new_mask))
                goto out;
 
-       dest_cpu = cpumask_any_and(cpu_valid_mask, new_mask);
        if (task_running(rq, p) || p->state == TASK_WAKING) {
                struct migration_arg arg = { p, dest_cpu };
                /* Need help from migration thread: drop lock and wait. */
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index b625cc7fcc1c..b5603248d841 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1586,21 +1586,23 @@ void timer_clear_idle(void)
 static int collect_expired_timers(struct timer_base *base,
                                  struct hlist_head *heads)
 {
+       unsigned long now = READ_ONCE(jiffies);
+
        /*
         * NOHZ optimization. After a long idle sleep we need to forward the
         * base to current jiffies. Avoid a loop by searching the bitfield for
         * the next expiring timer.
         */
-       if ((long)(jiffies - base->clk) > 2) {
+       if ((long)(now - base->clk) > 2) {
                unsigned long next = __next_timer_interrupt(base);
 
                /*
                 * If the next timer is ahead of time forward to current
                 * jiffies, otherwise forward to the next expiry time:
                 */
-               if (time_after(next, jiffies)) {
+               if (time_after(next, now)) {
                        /* The call site will increment clock! */
-                       base->clk = jiffies - 1;
+                       base->clk = now - 1;
                        return 0;
                }
                base->clk = next;
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 70b82f4fd417..827ba2caea09 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3700,9 +3700,14 @@ static int show_traces_open(struct inode *inode, struct 
file *file)
        if (tracing_disabled)
                return -ENODEV;
 
+       if (trace_array_get(tr) < 0)
+               return -ENODEV;
+
        ret = seq_open(file, &show_traces_seq_ops);
-       if (ret)
+       if (ret) {
+               trace_array_put(tr);
                return ret;
+       }
 
        m = file->private_data;
        m->private = tr;
@@ -3710,6 +3715,14 @@ static int show_traces_open(struct inode *inode, struct 
file *file)
        return 0;
 }
 
+static int show_traces_release(struct inode *inode, struct file *file)
+{
+       struct trace_array *tr = inode->i_private;
+
+       trace_array_put(tr);
+       return seq_release(inode, file);
+}
+
 static ssize_t
 tracing_write_stub(struct file *filp, const char __user *ubuf,
                   size_t count, loff_t *ppos)
@@ -3740,8 +3753,8 @@ static const struct file_operations tracing_fops = {
 static const struct file_operations show_traces_fops = {
        .open           = show_traces_open,
        .read           = seq_read,
-       .release        = seq_release,
        .llseek         = seq_lseek,
+       .release        = show_traces_release,
 };
 
 static ssize_t
diff --git a/kernel/trace/trace_hwlat.c b/kernel/trace/trace_hwlat.c
index f00b0131c8f9..5fe23f0ee7db 100644
--- a/kernel/trace/trace_hwlat.c
+++ b/kernel/trace/trace_hwlat.c
@@ -151,7 +151,7 @@ void trace_hwlat_callback(bool enter)
                if (enter)
                        nmi_ts_start = time_get();
                else
-                       nmi_total_ts = time_get() - nmi_ts_start;
+                       nmi_total_ts += time_get() - nmi_ts_start;
        }
 
        if (enter)
@@ -257,6 +257,8 @@ static int get_sample(void)
                /* Keep a running maximum ever recorded hardware latency */
                if (sample > tr->max_latency)
                        tr->max_latency = sample;
+               if (outer_sample > tr->max_latency)
+                       tr->max_latency = outer_sample;
        }
 
 out:
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 7683c22551ff..c2de343baad4 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -15,6 +15,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/mm.h>
+#include <linux/highmem.h>
 #include <linux/slab.h>
 #include <asm/sections.h>
 
@@ -217,7 +218,12 @@ static inline const char *check_heap_object(const void 
*ptr, unsigned long n,
        if (!virt_addr_valid(ptr))
                return NULL;
 
-       page = virt_to_head_page(ptr);
+       /*
+        * When CONFIG_HIGHMEM=y, kmap_to_page() will give either the
+        * highmem page or fallback to virt_to_page(). The following
+        * is effectively a highmem-aware virt_to_head_page().
+        */
+       page = compound_head(kmap_to_page((void *)ptr));
 
        /* Check slab allocator for flags and size. */
        if (PageSlab(page))
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d6e629315771..7aa1ca7ec638 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -213,6 +213,36 @@ cfg80211_get_dev_from_info(struct net *netns, struct 
genl_info *info)
        return __cfg80211_rdev_from_attrs(netns, info->attrs);
 }
 
+static int validate_beacon_head(const struct nlattr *attr)
+{
+       const u8 *data = nla_data(attr);
+       unsigned int len = nla_len(attr);
+       const struct element *elem;
+       const struct ieee80211_mgmt *mgmt = (void *)data;
+       unsigned int fixedlen = offsetof(struct ieee80211_mgmt,
+                                        u.beacon.variable);
+
+       if (len < fixedlen)
+               goto err;
+
+       if (ieee80211_hdrlen(mgmt->frame_control) !=
+           offsetof(struct ieee80211_mgmt, u.beacon))
+               goto err;
+
+       data += fixedlen;
+       len -= fixedlen;
+
+       for_each_element(elem, data, len) {
+               /* nothing */
+       }
+
+       if (for_each_element_completed(elem, data, len))
+               return 0;
+
+err:
+       return -EINVAL;
+}
+
 /* policy for the attributes */
 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
        [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
@@ -2069,6 +2099,8 @@ static int nl80211_parse_chandef(struct 
cfg80211_registered_device *rdev,
 
        control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
 
+       memset(chandef, 0, sizeof(*chandef));
+
        chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
        chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
        chandef->center_freq1 = control_freq;
@@ -2538,7 +2570,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 
portid, u32 seq, int flag
 
        if (rdev->ops->get_channel) {
                int ret;
-               struct cfg80211_chan_def chandef;
+               struct cfg80211_chan_def chandef = {};
 
                ret = rdev_get_channel(rdev, wdev, &chandef);
                if (ret == 0) {
@@ -3678,6 +3710,11 @@ static int nl80211_parse_beacon(struct nlattr *attrs[],
        memset(bcn, 0, sizeof(*bcn));
 
        if (attrs[NL80211_ATTR_BEACON_HEAD]) {
+               int ret = validate_beacon_head(attrs[NL80211_ATTR_BEACON_HEAD]);
+
+               if (ret)
+                       return ret;
+
                bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
                bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
                if (!bcn->head_len)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index d1378340d590..44befe9f9ff0 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1564,7 +1564,7 @@ static void reg_call_notifier(struct wiphy *wiphy,
 
 static bool reg_wdev_chan_valid(struct wiphy *wiphy, struct wireless_dev *wdev)
 {
-       struct cfg80211_chan_def chandef;
+       struct cfg80211_chan_def chandef = {};
        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
        enum nl80211_iftype iftype;
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 435f904c1be5..c60be11b5e08 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -407,6 +407,8 @@ const u8 *cfg80211_find_ie_match(u8 eid, const u8 *ies, int 
len,
                                 const u8 *match, int match_len,
                                 int match_offset)
 {
+       const struct element *elem;
+
        /* match_offset can't be smaller than 2, unless match_len is
         * zero, in which case match_offset must be zero as well.
         */
@@ -414,14 +416,10 @@ const u8 *cfg80211_find_ie_match(u8 eid, const u8 *ies, 
int len,
                    (!match_len && match_offset)))
                return NULL;
 
-       while (len >= 2 && len >= ies[1] + 2) {
-               if ((ies[0] == eid) &&
-                   (ies[1] + 2 >= match_offset + match_len) &&
-                   !memcmp(ies + match_offset, match, match_len))
-                       return ies;
-
-               len -= ies[1] + 2;
-               ies += ies[1] + 2;
+       for_each_element_id(elem, eid, ies, len) {
+               if (elem->datalen >= match_offset - 2 + match_len &&
+                   !memcmp(elem->data + match_offset - 2, match, match_len))
+                       return (void *)elem;
        }
 
        return NULL;
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index a220156cf217..b3baa34714e3 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -799,7 +799,7 @@ static int cfg80211_wext_giwfreq(struct net_device *dev,
 {
        struct wireless_dev *wdev = dev->ieee80211_ptr;
        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
-       struct cfg80211_chan_def chandef;
+       struct cfg80211_chan_def chandef = {};
        int ret;
 
        switch (wdev->iftype) {
diff --git a/security/integrity/ima/ima_crypto.c 
b/security/integrity/ima/ima_crypto.c
index 20e66291ca99..5155c343406e 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -298,8 +298,11 @@ static int ima_calc_file_hash_atfm(struct file *file,
                rbuf_len = min_t(loff_t, i_size - offset, rbuf_size[active]);
                rc = integrity_kernel_read(file, offset, rbuf[active],
                                           rbuf_len);
-               if (rc != rbuf_len)
+               if (rc != rbuf_len) {
+                       if (rc >= 0)
+                               rc = -EINVAL;
                        goto out3;
+               }
 
                if (rbuf[1] && offset) {
                        /* Using two buffers, and it is not the first
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index d81ac4e499aa..7406ea5c9a4f 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -35,6 +35,13 @@
 #define SGTL5000_DAP_REG_OFFSET        0x0100
 #define SGTL5000_MAX_REG_OFFSET        0x013A
 
+/* Delay for the VAG ramp up */
+#define SGTL5000_VAG_POWERUP_DELAY 500 /* ms */
+/* Delay for the VAG ramp down */
+#define SGTL5000_VAG_POWERDOWN_DELAY 500 /* ms */
+
+#define SGTL5000_OUTPUTS_MUTE (SGTL5000_HP_MUTE | SGTL5000_LINE_OUT_MUTE)
+
 /* default value of sgtl5000 registers */
 static const struct reg_default sgtl5000_reg_defaults[] = {
        { SGTL5000_CHIP_DIG_POWER,              0x0000 },
@@ -99,6 +106,13 @@ enum sgtl5000_micbias_resistor {
        SGTL5000_MICBIAS_8K = 8,
 };
 
+enum {
+       HP_POWER_EVENT,
+       DAC_POWER_EVENT,
+       ADC_POWER_EVENT,
+       LAST_POWER_EVENT = ADC_POWER_EVENT
+};
+
 /* sgtl5000 private structure in codec */
 struct sgtl5000_priv {
        int sysclk;     /* sysclk rate */
@@ -111,8 +125,117 @@ struct sgtl5000_priv {
        int revision;
        u8 micbias_resistor;
        u8 micbias_voltage;
+       u16 mute_state[LAST_POWER_EVENT + 1];
 };
 
+static inline int hp_sel_input(struct snd_soc_component *component)
+{
+       unsigned int ana_reg = 0;
+
+       snd_soc_component_read(component, SGTL5000_CHIP_ANA_CTRL, &ana_reg);
+
+       return (ana_reg & SGTL5000_HP_SEL_MASK) >> SGTL5000_HP_SEL_SHIFT;
+}
+
+static inline u16 mute_output(struct snd_soc_component *component,
+                             u16 mute_mask)
+{
+       unsigned int mute_reg = 0;
+
+       snd_soc_component_read(component, SGTL5000_CHIP_ANA_CTRL, &mute_reg);
+
+       snd_soc_component_update_bits(component, SGTL5000_CHIP_ANA_CTRL,
+                           mute_mask, mute_mask);
+       return mute_reg;
+}
+
+static inline void restore_output(struct snd_soc_component *component,
+                                 u16 mute_mask, u16 mute_reg)
+{
+       snd_soc_component_update_bits(component, SGTL5000_CHIP_ANA_CTRL,
+               mute_mask, mute_reg);
+}
+
+static void vag_power_on(struct snd_soc_component *component, u32 source)
+{
+       unsigned int ana_reg = 0;
+
+       snd_soc_component_read(component, SGTL5000_CHIP_ANA_POWER, &ana_reg);
+
+       if (ana_reg & SGTL5000_VAG_POWERUP)
+               return;
+
+       snd_soc_component_update_bits(component, SGTL5000_CHIP_ANA_POWER,
+                           SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
+
+       /* When VAG powering on to get local loop from Line-In, the sleep
+        * is required to avoid loud pop.
+        */
+       if (hp_sel_input(component) == SGTL5000_HP_SEL_LINE_IN &&
+           source == HP_POWER_EVENT)
+               msleep(SGTL5000_VAG_POWERUP_DELAY);
+}
+
+static int vag_power_consumers(struct snd_soc_component *component,
+                              u16 ana_pwr_reg, u32 source)
+{
+       int consumers = 0;
+
+       /* count dac/adc consumers unconditional */
+       if (ana_pwr_reg & SGTL5000_DAC_POWERUP)
+               consumers++;
+       if (ana_pwr_reg & SGTL5000_ADC_POWERUP)
+               consumers++;
+
+       /*
+        * If the event comes from HP and Line-In is selected,
+        * current action is 'DAC to be powered down'.
+        * As HP_POWERUP is not set when HP muxed to line-in,
+        * we need to keep VAG power ON.
+        */
+       if (source == HP_POWER_EVENT) {
+               if (hp_sel_input(component) == SGTL5000_HP_SEL_LINE_IN)
+                       consumers++;
+       } else {
+               if (ana_pwr_reg & SGTL5000_HP_POWERUP)
+                       consumers++;
+       }
+
+       return consumers;
+}
+
+static void vag_power_off(struct snd_soc_component *component, u32 source)
+{
+       unsigned int ana_pwr = SGTL5000_VAG_POWERUP;
+
+       snd_soc_component_read(component, SGTL5000_CHIP_ANA_POWER, &ana_pwr);
+
+       if (!(ana_pwr & SGTL5000_VAG_POWERUP))
+               return;
+
+       /*
+        * This function calls when any of VAG power consumers is disappearing.
+        * Thus, if there is more than one consumer at the moment, as minimum
+        * one consumer will definitely stay after the end of the current
+        * event.
+        * Don't clear VAG_POWERUP if 2 or more consumers of VAG present:
+        * - LINE_IN (for HP events) / HP (for DAC/ADC events)
+        * - DAC
+        * - ADC
+        * (the current consumer is disappearing right now)
+        */
+       if (vag_power_consumers(component, ana_pwr, source) >= 2)
+               return;
+
+       snd_soc_component_update_bits(component, SGTL5000_CHIP_ANA_POWER,
+               SGTL5000_VAG_POWERUP, 0);
+       /* In power down case, we need wait 400-1000 ms
+        * when VAG fully ramped down.
+        * As longer we wait, as smaller pop we've got.
+        */
+       msleep(SGTL5000_VAG_POWERDOWN_DELAY);
+}
+
 /*
  * mic_bias power on/off share the same register bits with
  * output impedance of mic bias, when power on mic bias, we
@@ -144,36 +267,46 @@ static int mic_bias_event(struct snd_soc_dapm_widget *w,
        return 0;
 }
 
-/*
- * As manual described, ADC/DAC only works when VAG powerup,
- * So enabled VAG before ADC/DAC up.
- * In power down case, we need wait 400ms when vag fully ramped down.
- */
-static int power_vag_event(struct snd_soc_dapm_widget *w,
-       struct snd_kcontrol *kcontrol, int event)
+static int vag_and_mute_control(struct snd_soc_component *component,
+                                int event, int event_source)
 {
-       struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
-       const u32 mask = SGTL5000_DAC_POWERUP | SGTL5000_ADC_POWERUP;
+       static const u16 mute_mask[] = {
+               /*
+                * Mask for HP_POWER_EVENT.
+                * Muxing Headphones have to be wrapped with mute/unmute
+                * headphones only.
+                */
+               SGTL5000_HP_MUTE,
+               /*
+                * Masks for DAC_POWER_EVENT/ADC_POWER_EVENT.
+                * Muxing DAC or ADC block have to be wrapped with mute/unmute
+                * both headphones and line-out.
+                */
+               SGTL5000_OUTPUTS_MUTE,
+               SGTL5000_OUTPUTS_MUTE
+       };
+
+       struct sgtl5000_priv *sgtl5000 =
+               snd_soc_component_get_drvdata(component);
 
        switch (event) {
+       case SND_SOC_DAPM_PRE_PMU:
+               sgtl5000->mute_state[event_source] =
+                       mute_output(component, mute_mask[event_source]);
+               break;
        case SND_SOC_DAPM_POST_PMU:
-               snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
-                       SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
-               msleep(400);
+               vag_power_on(component, event_source);
+               restore_output(component, mute_mask[event_source],
+                              sgtl5000->mute_state[event_source]);
                break;
-
        case SND_SOC_DAPM_PRE_PMD:
-               /*
-                * Don't clear VAG_POWERUP, when both DAC and ADC are
-                * operational to prevent inadvertently starving the
-                * other one of them.
-                */
-               if ((snd_soc_read(codec, SGTL5000_CHIP_ANA_POWER) &
-                               mask) != mask) {
-                       snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
-                               SGTL5000_VAG_POWERUP, 0);
-                       msleep(400);
-               }
+               sgtl5000->mute_state[event_source] =
+                       mute_output(component, mute_mask[event_source]);
+               vag_power_off(component, event_source);
+               break;
+       case SND_SOC_DAPM_POST_PMD:
+               restore_output(component, mute_mask[event_source],
+                              sgtl5000->mute_state[event_source]);
                break;
        default:
                break;
@@ -182,6 +315,41 @@ static int power_vag_event(struct snd_soc_dapm_widget *w,
        return 0;
 }
 
+/*
+ * Mute Headphone when power it up/down.
+ * Control VAG power on HP power path.
+ */
+static int headphone_pga_event(struct snd_soc_dapm_widget *w,
+       struct snd_kcontrol *kcontrol, int event)
+{
+       struct snd_soc_component *component =
+               snd_soc_dapm_to_component(w->dapm);
+
+       return vag_and_mute_control(component, event, HP_POWER_EVENT);
+}
+
+/* As manual describes, ADC/DAC powering up/down requires
+ * to mute outputs to avoid pops.
+ * Control VAG power on ADC/DAC power path.
+ */
+static int adc_updown_depop(struct snd_soc_dapm_widget *w,
+       struct snd_kcontrol *kcontrol, int event)
+{
+       struct snd_soc_component *component =
+               snd_soc_dapm_to_component(w->dapm);
+
+       return vag_and_mute_control(component, event, ADC_POWER_EVENT);
+}
+
+static int dac_updown_depop(struct snd_soc_dapm_widget *w,
+       struct snd_kcontrol *kcontrol, int event)
+{
+       struct snd_soc_component *component =
+               snd_soc_dapm_to_component(w->dapm);
+
+       return vag_and_mute_control(component, event, DAC_POWER_EVENT);
+}
+
 /* input sources for ADC */
 static const char *adc_mux_text[] = {
        "MIC_IN", "LINE_IN"
@@ -217,7 +385,10 @@ static const struct snd_soc_dapm_widget 
sgtl5000_dapm_widgets[] = {
                            mic_bias_event,
                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 
-       SND_SOC_DAPM_PGA("HP", SGTL5000_CHIP_ANA_POWER, 4, 0, NULL, 0),
+       SND_SOC_DAPM_PGA_E("HP", SGTL5000_CHIP_ANA_POWER, 4, 0, NULL, 0,
+                          headphone_pga_event,
+                          SND_SOC_DAPM_PRE_POST_PMU |
+                          SND_SOC_DAPM_PRE_POST_PMD),
        SND_SOC_DAPM_PGA("LO", SGTL5000_CHIP_ANA_POWER, 0, 0, NULL, 0),
 
        SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0, &adc_mux),
@@ -233,11 +404,12 @@ static const struct snd_soc_dapm_widget 
sgtl5000_dapm_widgets[] = {
                                0, SGTL5000_CHIP_DIG_POWER,
                                1, 0),
 
-       SND_SOC_DAPM_ADC("ADC", "Capture", SGTL5000_CHIP_ANA_POWER, 1, 0),
-       SND_SOC_DAPM_DAC("DAC", "Playback", SGTL5000_CHIP_ANA_POWER, 3, 0),
-
-       SND_SOC_DAPM_PRE("VAG_POWER_PRE", power_vag_event),
-       SND_SOC_DAPM_POST("VAG_POWER_POST", power_vag_event),
+       SND_SOC_DAPM_ADC_E("ADC", "Capture", SGTL5000_CHIP_ANA_POWER, 1, 0,
+                          adc_updown_depop, SND_SOC_DAPM_PRE_POST_PMU |
+                          SND_SOC_DAPM_PRE_POST_PMD),
+       SND_SOC_DAPM_DAC_E("DAC", "Playback", SGTL5000_CHIP_ANA_POWER, 3, 0,
+                          dac_updown_depop, SND_SOC_DAPM_PRE_POST_PMU |
+                          SND_SOC_DAPM_PRE_POST_PMD),
 };
 
 /* routes for sgtl5000 */
diff --git a/tools/lib/traceevent/event-parse.c 
b/tools/lib/traceevent/event-parse.c
index def61125ac36..62f4cacf253a 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -267,10 +267,10 @@ static int add_new_comm(struct pevent *pevent, const char 
*comm, int pid)
                errno = ENOMEM;
                return -1;
        }
+       pevent->cmdlines = cmdlines;
 
        cmdlines[pevent->cmdline_count].comm = strdup(comm);
        if (!cmdlines[pevent->cmdline_count].comm) {
-               free(cmdlines);
                errno = ENOMEM;
                return -1;
        }
@@ -281,7 +281,6 @@ static int add_new_comm(struct pevent *pevent, const char 
*comm, int pid)
                pevent->cmdline_count++;
 
        qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
-       pevent->cmdlines = cmdlines;
 
        return 0;
 }
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 43d5f35e9074..5cb58f3afa35 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -2564,8 +2564,11 @@ int cmd_stat(int argc, const char **argv, const char 
*prefix __maybe_unused)
                        fprintf(output, "[ perf stat: executing run #%d ... 
]\n",
                                run_idx + 1);
 
+               if (run_idx != 0)
+                       perf_evlist__reset_prev_raw_counts(evsel_list);
+
                status = run_perf_stat(argc, argv);
-               if (forever && status != -1) {
+               if (forever && status != -1 && !interval) {
                        print_counters(NULL, argc, argv);
                        perf_stat__reset_stats();
                }
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 258b19b251a8..b3d947b98a7c 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -949,7 +949,7 @@ static int cpu_cache_level__read(struct cpu_cache_level 
*cache, u32 cpu, u16 lev
 
        scnprintf(file, PATH_MAX, "%s/shared_cpu_list", path);
        if (sysfs__read_str(file, &cache->map, &len)) {
-               free(cache->map);
+               free(cache->size);
                free(cache->type);
                return -1;
        }
diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c
index 95f0884aae02..7e2e8aa95467 100644
--- a/tools/perf/util/jitdump.c
+++ b/tools/perf/util/jitdump.c
@@ -369,7 +369,7 @@ static int jit_repipe_code_load(struct jit_buf_desc *jd, 
union jr_entry *jr)
        size_t size;
        u16 idr_size;
        const char *sym;
-       uint32_t count;
+       uint64_t count;
        int ret, csize;
        pid_t pid, tid;
        struct {
@@ -391,7 +391,7 @@ static int jit_repipe_code_load(struct jit_buf_desc *jd, 
union jr_entry *jr)
                return -1;
 
        filename = event->mmap2.filename;
-       size = snprintf(filename, PATH_MAX, "%s/jitted-%d-%u.so",
+       size = snprintf(filename, PATH_MAX, "%s/jitted-%d-%" PRIu64 ".so",
                        jd->dir,
                        pid,
                        count);
@@ -493,7 +493,7 @@ static int jit_repipe_code_move(struct jit_buf_desc *jd, 
union jr_entry *jr)
                return -1;
 
        filename = event->mmap2.filename;
-       size = snprintf(filename, PATH_MAX, "%s/jitted-%d-%"PRIu64,
+       size = snprintf(filename, PATH_MAX, "%s/jitted-%d-%" PRIu64 ".so",
                 jd->dir,
                 pid,
                 jr->move.code_index);
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index 621f6527b790..4887dd5eb80f 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -220,14 +220,14 @@ static int detect_kbuild_dir(char **kbuild_dir)
        const char *prefix_dir = "";
        const char *suffix_dir = "";
 
+       /* _UTSNAME_LENGTH is 65 */
+       char release[128];
+
        char *autoconf_path;
 
        int err;
 
        if (!test_dir) {
-               /* _UTSNAME_LENGTH is 65 */
-               char release[128];
-
                err = fetch_kernel_version(NULL, release,
                                           sizeof(release));
                if (err)
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 39345c2ddfc2..d4f872f1750e 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -145,6 +145,15 @@ static void perf_evsel__free_prev_raw_counts(struct 
perf_evsel *evsel)
        evsel->prev_raw_counts = NULL;
 }
 
+static void perf_evsel__reset_prev_raw_counts(struct perf_evsel *evsel)
+{
+       if (evsel->prev_raw_counts) {
+               evsel->prev_raw_counts->aggr.val = 0;
+               evsel->prev_raw_counts->aggr.ena = 0;
+               evsel->prev_raw_counts->aggr.run = 0;
+       }
+}
+
 static int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw)
 {
        int ncpus = perf_evsel__nr_cpus(evsel);
@@ -195,6 +204,14 @@ void perf_evlist__reset_stats(struct perf_evlist *evlist)
        }
 }
 
+void perf_evlist__reset_prev_raw_counts(struct perf_evlist *evlist)
+{
+       struct perf_evsel *evsel;
+
+       evlist__for_each_entry(evlist, evsel)
+               perf_evsel__reset_prev_raw_counts(evsel);
+}
+
 static void zero_per_pkg(struct perf_evsel *counter)
 {
        if (counter->per_pkg_mask)
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index c29bb94c48a4..b8845aceac31 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -94,6 +94,7 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
 int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
 void perf_evlist__free_stats(struct perf_evlist *evlist);
 void perf_evlist__reset_stats(struct perf_evlist *evlist);
+void perf_evlist__reset_prev_raw_counts(struct perf_evlist *evlist);
 
 int perf_stat_process_counter(struct perf_stat_config *config,
                              struct perf_evsel *counter);

Reply via email to