diff --git a/Makefile b/Makefile
index 7d34194e0f65..15560bbc07f6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 248
+SUBLEVEL = 249
 EXTRAVERSION =
 NAME = Blurry Fish Butt
 
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index 5401e2bab3da..054511f571df 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -39,15 +39,15 @@
 
 #ifdef CONFIG_ARC_DW2_UNWIND
 
-static void seed_unwind_frame_info(struct task_struct *tsk,
-                                  struct pt_regs *regs,
-                                  struct unwind_frame_info *frame_info)
+static int
+seed_unwind_frame_info(struct task_struct *tsk, struct pt_regs *regs,
+                      struct unwind_frame_info *frame_info)
 {
        /*
         * synchronous unwinding (e.g. dump_stack)
         *  - uses current values of SP and friends
         */
-       if (tsk == NULL && regs == NULL) {
+       if (regs == NULL && (tsk == NULL || tsk == current)) {
                unsigned long fp, sp, blink, ret;
                frame_info->task = current;
 
@@ -66,11 +66,15 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
                frame_info->call_frame = 0;
        } else if (regs == NULL) {
                /*
-                * Asynchronous unwinding of sleeping task
-                *  - Gets SP etc from task's pt_regs (saved bottom of kernel
-                *    mode stack of task)
+                * Asynchronous unwinding of a likely sleeping task
+                *  - first ensure it is actually sleeping
+                *  - if so, it will be in __switch_to, kernel mode SP of task
+                *    is safe-kept and BLINK at a well known location in there
                 */
 
+               if (tsk->state == TASK_RUNNING)
+                       return -1;
+
                frame_info->task = tsk;
 
                frame_info->regs.r27 = TSK_K_FP(tsk);
@@ -104,6 +108,8 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
                frame_info->regs.r63 = regs->ret;
                frame_info->call_frame = 0;
        }
+
+       return 0;
 }
 
 #endif
@@ -117,7 +123,8 @@ arc_unwind_core(struct task_struct *tsk, struct pt_regs 
*regs,
        unsigned int address;
        struct unwind_frame_info frame_info;
 
-       seed_unwind_frame_info(tsk, regs, &frame_info);
+       if (seed_unwind_frame_info(tsk, regs, &frame_info))
+               return 0;
 
        while (1) {
                address = UNW_PC(&frame_info);
diff --git a/arch/arm/boot/dts/at91-sama5d3_xplained.dts 
b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
index 0bd325c314e1..2b882d129b16 100644
--- a/arch/arm/boot/dts/at91-sama5d3_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
@@ -231,6 +231,11 @@
                                                atmel,pins =
                                                        <AT91_PIOE 9 
AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>;   /* PE9, conflicts with A9 */
                                        };
+                                       pinctrl_usb_default: usb_default {
+                                               atmel,pins =
+                                                       <AT91_PIOE 3 
AT91_PERIPH_GPIO AT91_PINCTRL_NONE
+                                                        AT91_PIOE 4 
AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+                                       };
                                };
                        };
                };
@@ -288,6 +293,8 @@
                                           &pioE 3 GPIO_ACTIVE_LOW
                                           &pioE 4 GPIO_ACTIVE_LOW
                                          >;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&pinctrl_usb_default>;
                        status = "okay";
                };
 
diff --git a/arch/arm/boot/dts/at91-sama5d4_xplained.dts 
b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
index e27024cdf48b..17adaa1a65c1 100644
--- a/arch/arm/boot/dts/at91-sama5d4_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
@@ -152,6 +152,11 @@
                                                atmel,pins =
                                                        <AT91_PIOE 31 
AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>;
                                        };
+                                       pinctrl_usb_default: usb_default {
+                                               atmel,pins =
+                                                       <AT91_PIOE 11 
AT91_PERIPH_GPIO AT91_PINCTRL_NONE
+                                                        AT91_PIOE 14 
AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+                                       };
                                        pinctrl_key_gpio: key_gpio_0 {
                                                atmel,pins =
                                                        <AT91_PIOE 8 
AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
@@ -177,6 +182,8 @@
                                           &pioE 11 GPIO_ACTIVE_HIGH
                                           &pioE 14 GPIO_ACTIVE_HIGH
                                          >;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&pinctrl_usb_default>;
                        status = "okay";
                };
 
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 04286fd9e09c..2e336acd68b0 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -673,12 +673,8 @@ ARM_BE8(rev16      ip, ip)
        ldrcc   r7, [r4], #4    @ use branch for delay slot
        bcc     1b
        bx      lr
-#else
-#ifdef CONFIG_CPU_ENDIAN_BE8
-       moveq   r0, #0x00004000 @ set bit 22, mov to mvn instruction
 #else
        moveq   r0, #0x400000   @ set bit 22, mov to mvn instruction
-#endif
        b       2f
 1:     ldr     ip, [r7, r3]
 #ifdef CONFIG_CPU_ENDIAN_BE8
@@ -687,7 +683,7 @@ ARM_BE8(rev16       ip, ip)
        tst     ip, #0x000f0000 @ check the rotation field
        orrne   ip, ip, r6, lsl #24 @ mask in offset bits 31-24
        biceq   ip, ip, #0x00004000 @ clear bit 22
-       orreq   ip, ip, r0      @ mask in offset bits 7-0
+       orreq   ip, ip, r0, ror #8  @ mask in offset bits 7-0
 #else
        bic     ip, ip, #0x000000ff
        tst     ip, #0xf00      @ check the rotation field
diff --git a/arch/mips/bcm47xx/Kconfig b/arch/mips/bcm47xx/Kconfig
index e970fd9cf769..7ca7384fd5c9 100644
--- a/arch/mips/bcm47xx/Kconfig
+++ b/arch/mips/bcm47xx/Kconfig
@@ -26,6 +26,7 @@ config BCM47XX_BCMA
        select BCMA
        select BCMA_HOST_SOC
        select BCMA_DRIVER_MIPS
+       select BCMA_DRIVER_PCI if PCI
        select BCMA_DRIVER_PCI_HOSTMODE if PCI
        select BCMA_DRIVER_GPIO
        default y
diff --git a/arch/powerpc/include/asm/cputable.h 
b/arch/powerpc/include/asm/cputable.h
index b118072670fb..9fe3f05000e3 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -400,7 +400,6 @@ enum {
            CPU_FTR_DBELL | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
            CPU_FTR_DEBUG_LVL_EXC | CPU_FTR_EMB_HV | CPU_FTR_ALTIVEC_COMP | \
            CPU_FTR_CELL_TB_BUG | CPU_FTR_SMT)
-#define CPU_FTRS_GENERIC_32    (CPU_FTR_COMMON | CPU_FTR_NODSISRALIGN)
 
 /* 64-bit CPUs */
 #define CPU_FTRS_POWER4        (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
@@ -479,8 +478,6 @@ enum {
            CPU_FTRS_7447 | CPU_FTRS_7447A | CPU_FTRS_82XX |
            CPU_FTRS_G2_LE | CPU_FTRS_E300 | CPU_FTRS_E300C2 |
            CPU_FTRS_CLASSIC32 |
-#else
-           CPU_FTRS_GENERIC_32 |
 #endif
 #ifdef CONFIG_8xx
            CPU_FTRS_8XX |
@@ -530,8 +527,6 @@ enum {
            CPU_FTRS_7447 & CPU_FTRS_7447A & CPU_FTRS_82XX &
            CPU_FTRS_G2_LE & CPU_FTRS_E300 & CPU_FTRS_E300C2 &
            CPU_FTRS_CLASSIC32 &
-#else
-           CPU_FTRS_GENERIC_32 &
 #endif
 #ifdef CONFIG_8xx
            CPU_FTRS_8XX &
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 30e2e8efbe6b..e593e7f856ed 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -2020,6 +2020,16 @@ static void record_and_restart(struct perf_event *event, 
unsigned long val,
        local64_set(&event->hw.period_left, left);
        perf_event_update_userpage(event);
 
+       /*
+        * Due to hardware limitation, sometimes SIAR could sample a kernel
+        * address even when freeze on supervisor state (kernel) is set in
+        * MMCR2. Check attr.exclude_kernel and address to drop the sample in
+        * these cases.
+        */
+       if (event->attr.exclude_kernel && record)
+               if (is_kernel_addr(mfspr(SPRN_SIAR)))
+                       record = 0;
+
        /*
         * Finally record data if requested.
         */
diff --git a/arch/powerpc/platforms/pseries/suspend.c 
b/arch/powerpc/platforms/pseries/suspend.c
index e76aefae2aa2..0a0e0c8256f6 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -224,7 +224,6 @@ static struct bus_type suspend_subsys = {
 
 static const struct platform_suspend_ops pseries_suspend_ops = {
        .valid          = suspend_valid_only_mem,
-       .begin          = pseries_suspend_begin,
        .prepare_late   = pseries_prepare_late,
        .enter          = pseries_suspend_enter,
 };
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c
index 20e30be44795..e3b422ebce09 100644
--- a/arch/um/drivers/xterm.c
+++ b/arch/um/drivers/xterm.c
@@ -18,6 +18,7 @@
 struct xterm_chan {
        int pid;
        int helper_pid;
+       int chan_fd;
        char *title;
        int device;
        int raw;
@@ -33,6 +34,7 @@ static void *xterm_init(char *str, int device, const struct 
chan_opts *opts)
                return NULL;
        *data = ((struct xterm_chan) { .pid             = -1,
                                       .helper_pid      = -1,
+                                      .chan_fd         = -1,
                                       .device          = device,
                                       .title           = opts->xterm_title,
                                       .raw             = opts->raw } );
@@ -149,6 +151,7 @@ static int xterm_open(int input, int output, int primary, 
void *d,
                goto out_kill;
        }
 
+       data->chan_fd = fd;
        new = xterm_fd(fd, &data->helper_pid);
        if (new < 0) {
                err = new;
@@ -206,6 +209,8 @@ static void xterm_close(int fd, void *d)
                os_kill_process(data->helper_pid, 0);
        data->helper_pid = -1;
 
+       if (data->chan_fd != -1)
+               os_close_file(data->chan_fd);
        os_close_file(fd);
 }
 
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 5a6cb30b1c62..ebd4da00a56e 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -1014,6 +1014,11 @@ int kprobe_fault_handler(struct pt_regs *regs, int 
trapnr)
                 * So clear it by resetting the current kprobe:
                 */
                regs->flags &= ~X86_EFLAGS_TF;
+               /*
+                * Since the single step (trap) has been cancelled,
+                * we need to restore BTF here.
+                */
+               restore_btf();
 
                /*
                 * If the TF flag was set before the kprobe hit,
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index 48fc3ad13a4b..1738eb0fa7db 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -320,6 +320,9 @@ static bool matching_id(const char *idstr, const char 
*list_id)
 {
        int i;
 
+       if (strlen(idstr) != strlen(list_id))
+               return false;
+
        if (memcmp(idstr, list_id, 3))
                return false;
 
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 627f8fbb5e9a..e6003d2baa45 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -506,7 +506,7 @@ static acpi_status acpi_dev_process_resource(struct 
acpi_resource *ares,
                ret = c->preproc(ares, c->preproc_data);
                if (ret < 0) {
                        c->error = ret;
-                       return AE_CTRL_TERMINATE;
+                       return AE_ABORT_METHOD;
                } else if (ret > 0) {
                        return AE_OK;
                }
diff --git a/drivers/block/xen-blkback/xenbus.c 
b/drivers/block/xen-blkback/xenbus.c
index 0ec257e69e95..823f3480ebd1 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -553,7 +553,8 @@ static int xen_blkbk_probe(struct xenbus_device *dev,
        /* setup back pointer */
        be->blkif->be = be;
 
-       err = xenbus_watch_pathfmt(dev, &be->backend_watch, backend_changed,
+       err = xenbus_watch_pathfmt(dev, &be->backend_watch, NULL,
+                                  backend_changed,
                                   "%s/%s", dev->nodename, "physical-device");
        if (err)
                goto fail;
diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c
index 1c543effe062..e6284fc1689b 100644
--- a/drivers/bus/mips_cdmm.c
+++ b/drivers/bus/mips_cdmm.c
@@ -544,10 +544,8 @@ static void mips_cdmm_bus_discover(struct mips_cdmm_bus 
*bus)
                dev_set_name(&dev->dev, "cdmm%u-%u", cpu, id);
                ++id;
                ret = device_register(&dev->dev);
-               if (ret) {
+               if (ret)
                        put_device(&dev->dev);
-                       kfree(dev);
-               }
        }
 }
 
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 14af5c916c9c..8a42a9c2a8f2 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -263,6 +263,7 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
        return ret;
 
 err_reg:
+       of_node_put(s2mps11_clks[0].clk_np);
        while (--i >= 0)
                clkdev_drop(s2mps11_clks[i].lookup);
 
diff --git a/drivers/clk/ti/fapll.c b/drivers/clk/ti/fapll.c
index 66a0d0ed8b55..02ff499e3653 100644
--- a/drivers/clk/ti/fapll.c
+++ b/drivers/clk/ti/fapll.c
@@ -497,6 +497,7 @@ static struct clk * __init ti_fapll_synth_setup(struct 
fapll_data *fd,
 {
        struct clk_init_data *init;
        struct fapll_synth *synth;
+       struct clk *clk = ERR_PTR(-ENOMEM);
 
        init = kzalloc(sizeof(*init), GFP_KERNEL);
        if (!init)
@@ -519,13 +520,19 @@ static struct clk * __init ti_fapll_synth_setup(struct 
fapll_data *fd,
        synth->hw.init = init;
        synth->clk_pll = pll_clk;
 
-       return clk_register(NULL, &synth->hw);
+       clk = clk_register(NULL, &synth->hw);
+       if (IS_ERR(clk)) {
+               pr_err("failed to register clock\n");
+               goto free;
+       }
+
+       return clk;
 
 free:
        kfree(synth);
        kfree(init);
 
-       return ERR_PTR(-ENOMEM);
+       return clk;
 }
 
 static void __init ti_fapll_setup(struct device_node *node)
diff --git a/drivers/clocksource/arm_arch_timer.c 
b/drivers/clocksource/arm_arch_timer.c
index c64d543d64bf..4e303c77caed 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -310,15 +310,24 @@ static void arch_timer_evtstrm_enable(int divider)
 
 static void arch_timer_configure_evtstream(void)
 {
-       int evt_stream_div, pos;
+       int evt_stream_div, lsb;
+
+       /*
+        * As the event stream can at most be generated at half the frequency
+        * of the counter, use half the frequency when computing the divider.
+        */
+       evt_stream_div = arch_timer_rate / ARCH_TIMER_EVT_STREAM_FREQ / 2;
+
+       /*
+        * Find the closest power of two to the divisor. If the adjacent bit
+        * of lsb (last set bit, starts from 0) is set, then we use (lsb + 1).
+        */
+       lsb = fls(evt_stream_div) - 1;
+       if (lsb > 0 && (evt_stream_div & BIT(lsb - 1)))
+               lsb++;
 
-       /* Find the closest power of two to the divisor */
-       evt_stream_div = arch_timer_rate / ARCH_TIMER_EVT_STREAM_FREQ;
-       pos = fls(evt_stream_div);
-       if (pos > 1 && !(evt_stream_div & (1 << (pos - 2))))
-               pos--;
        /* enable event stream */
-       arch_timer_evtstrm_enable(min(pos, 15));
+       arch_timer_evtstrm_enable(max(0, min(lsb, 15)));
 }
 
 static void arch_counter_set_user_access(void)
diff --git a/drivers/cpufreq/highbank-cpufreq.c 
b/drivers/cpufreq/highbank-cpufreq.c
index 1608f7105c9f..ad743f2f31e7 100644
--- a/drivers/cpufreq/highbank-cpufreq.c
+++ b/drivers/cpufreq/highbank-cpufreq.c
@@ -104,6 +104,13 @@ out_put_node:
 }
 module_init(hb_cpufreq_driver_init);
 
+static const struct of_device_id __maybe_unused hb_cpufreq_of_match[] = {
+       { .compatible = "calxeda,highbank" },
+       { .compatible = "calxeda,ecx-2000" },
+       { },
+};
+MODULE_DEVICE_TABLE(of, hb_cpufreq_of_match);
+
 MODULE_AUTHOR("Mark Langsdorf <mark.langsd...@calxeda.com>");
 MODULE_DESCRIPTION("Calxeda Highbank cpufreq driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/ls1x-cpufreq.c b/drivers/cpufreq/ls1x-cpufreq.c
index 262581b3318d..367cb1615c30 100644
--- a/drivers/cpufreq/ls1x-cpufreq.c
+++ b/drivers/cpufreq/ls1x-cpufreq.c
@@ -217,6 +217,7 @@ static struct platform_driver ls1x_cpufreq_platdrv = {
 
 module_platform_driver(ls1x_cpufreq_platdrv);
 
+MODULE_ALIAS("platform:ls1x-cpufreq");
 MODULE_AUTHOR("Kelvin Cheung <keguang.zh...@gmail.com>");
 MODULE_DESCRIPTION("Loongson 1 CPUFreq driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index de5e89b2eaaa..98f762cca901 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -119,6 +119,7 @@ static struct platform_driver scpi_cpufreq_platdrv = {
 };
 module_platform_driver(scpi_cpufreq_platdrv);
 
+MODULE_ALIAS("platform:scpi-cpufreq");
 MODULE_AUTHOR("Sudeep Holla <sudeep.ho...@arm.com>");
 MODULE_DESCRIPTION("ARM SCPI CPUFreq interface driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 1c8857e7db89..cfefa18bca28 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -440,7 +440,7 @@ DEF_TALITOS2_DONE(ch1_3, TALITOS2_ISR_CH_1_3_DONE)
 /*
  * locate current (offending) descriptor
  */
-static u32 current_desc_hdr(struct device *dev, int ch)
+static __be32 current_desc_hdr(struct device *dev, int ch)
 {
        struct talitos_private *priv = dev_get_drvdata(dev);
        int tail, iter;
@@ -471,13 +471,13 @@ static u32 current_desc_hdr(struct device *dev, int ch)
 /*
  * user diagnostics; report root cause of error based on execution unit status
  */
-static void report_eu_error(struct device *dev, int ch, u32 desc_hdr)
+static void report_eu_error(struct device *dev, int ch, __be32 desc_hdr)
 {
        struct talitos_private *priv = dev_get_drvdata(dev);
        int i;
 
        if (!desc_hdr)
-               desc_hdr = in_be32(priv->chan[ch].reg + TALITOS_DESCBUF);
+               desc_hdr = cpu_to_be32(in_be32(priv->chan[ch].reg + 
TALITOS_DESCBUF));
 
        switch (desc_hdr & DESC_HDR_SEL0_MASK) {
        case DESC_HDR_SEL0_AFEU:
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 44c499e1beee..02b3feb76ca9 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1262,4 +1262,4 @@ module_platform_driver(max77693_muic_driver);
 MODULE_DESCRIPTION("Maxim MAX77693 Extcon driver");
 MODULE_AUTHOR("Chanwoo Choi <cw00.c...@samsung.com>");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:extcon-max77693");
+MODULE_ALIAS("platform:max77693-muic");
diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c 
b/drivers/gpu/drm/gma500/cdv_intel_dp.c
index 25c68e4dc7a5..e465d7127258 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_dp.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c
@@ -2125,7 +2125,7 @@ cdv_intel_dp_init(struct drm_device *dev, struct 
psb_intel_mode_device *mode_dev
                        DRM_INFO("failed to retrieve link info, disabling 
eDP\n");
                        cdv_intel_dp_encoder_destroy(encoder);
                        cdv_intel_dp_destroy(connector);
-                       goto err_priv;
+                       goto err_connector;
                } else {
                        DRM_DEBUG_KMS("DPCD: Rev=%x LN_Rate=%x LN_CNT=%x 
LN_DOWNSP=%x\n",
                                intel_dp->dpcd[0], intel_dp->dpcd[1], 
diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c 
b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index 8282ae0c4fc3..bed686279882 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -720,6 +720,7 @@ static int omap_dmm_probe(struct platform_device *dev)
                                &omap_dmm->refill_pa, GFP_KERNEL);
        if (!omap_dmm->refill_va) {
                dev_err(&dev->dev, "could not allocate refill memory\n");
+               ret = -ENOMEM;
                goto fail;
        }
 
diff --git a/drivers/iio/adc/rockchip_saradc.c 
b/drivers/iio/adc/rockchip_saradc.c
index dffff64b5989..da91e9e9ed8f 100644
--- a/drivers/iio/adc/rockchip_saradc.c
+++ b/drivers/iio/adc/rockchip_saradc.c
@@ -359,7 +359,7 @@ static int rockchip_saradc_resume(struct device *dev)
 
        ret = clk_prepare_enable(info->clk);
        if (ret)
-               return ret;
+               clk_disable_unprepare(info->pclk);
 
        return ret;
 }
diff --git a/drivers/iio/pressure/mpl3115.c b/drivers/iio/pressure/mpl3115.c
index 0f5b8767ec2e..6ed4e6902eff 100644
--- a/drivers/iio/pressure/mpl3115.c
+++ b/drivers/iio/pressure/mpl3115.c
@@ -139,7 +139,14 @@ static irqreturn_t mpl3115_trigger_handler(int irq, void 
*p)
        struct iio_poll_func *pf = p;
        struct iio_dev *indio_dev = pf->indio_dev;
        struct mpl3115_data *data = iio_priv(indio_dev);
-       u8 buffer[16]; /* 32-bit channel + 16-bit channel + padding + ts */
+       /*
+        * 32-bit channel + 16-bit channel + padding + ts
+        * Note that it is possible for only one of the first 2
+        * channels to be enabled. If that happens, the first element
+        * of the buffer may be either 16 or 32-bits.  As such we cannot
+        * use a simple structure definition to express this data layout.
+        */
+       u8 buffer[16] __aligned(8);
        int ret, pos = 0;
 
        mutex_lock(&data->lock);
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 53c622c99ee4..ba713bc27c5f 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1252,6 +1252,7 @@ int ib_send_cm_req(struct ib_cm_id *cm_id,
                                                            id.local_id);
        if (IS_ERR(cm_id_priv->timewait_info)) {
                ret = PTR_ERR(cm_id_priv->timewait_info);
+               cm_id_priv->timewait_info = NULL;
                goto out;
        }
 
@@ -1681,6 +1682,7 @@ static int cm_req_handler(struct cm_work *work)
                                                            id.local_id);
        if (IS_ERR(cm_id_priv->timewait_info)) {
                ret = PTR_ERR(cm_id_priv->timewait_info);
+               cm_id_priv->timewait_info = NULL;
                goto destroy;
        }
        cm_id_priv->timewait_info->work.remote_id = req_msg->local_comm_id;
diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c 
b/drivers/infiniband/hw/mthca/mthca_cq.c
index 59e1f6ea2ede..1b0bb340281e 100644
--- a/drivers/infiniband/hw/mthca/mthca_cq.c
+++ b/drivers/infiniband/hw/mthca/mthca_cq.c
@@ -612,7 +612,7 @@ static inline int mthca_poll_one(struct mthca_dev *dev,
                        entry->opcode    = IB_WC_BIND_MW;
                        break;
                default:
-                       entry->opcode    = MTHCA_OPCODE_INVALID;
+                       entry->opcode = 0xFF;
                        break;
                }
        } else {
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h 
b/drivers/infiniband/hw/mthca/mthca_dev.h
index 4393a022867b..e1fc67e73bf8 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -105,7 +105,6 @@ enum {
        MTHCA_OPCODE_ATOMIC_CS      = 0x11,
        MTHCA_OPCODE_ATOMIC_FA      = 0x12,
        MTHCA_OPCODE_BIND_MW        = 0x18,
-       MTHCA_OPCODE_INVALID        = 0xff
 };
 
 enum {
diff --git a/drivers/input/keyboard/cros_ec_keyb.c 
b/drivers/input/keyboard/cros_ec_keyb.c
index b01966dc7eb3..44a5a5496cfd 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -137,6 +137,7 @@ static void cros_ec_keyb_process(struct cros_ec_keyb *ckdev,
                                        "changed: [r%d c%d]: byte %02x\n",
                                        row, col, new_state);
 
+                               input_event(idev, EV_MSC, MSC_SCAN, pos);
                                input_report_key(idev, keycodes[pos],
                                                 new_state);
                        }
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
index 50a7faa504f7..c8c6650b9140 100644
--- a/drivers/input/misc/cm109.c
+++ b/drivers/input/misc/cm109.c
@@ -546,12 +546,15 @@ static int cm109_input_open(struct input_dev *idev)
        dev->ctl_data->byte[HID_OR2] = dev->keybit;
        dev->ctl_data->byte[HID_OR3] = 0x00;
 
+       dev->ctl_urb_pending = 1;
        error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
-       if (error)
+       if (error) {
+               dev->ctl_urb_pending = 0;
                dev_err(&dev->intf->dev, "%s: usb_submit_urb (urb_ctl) failed 
%d\n",
                        __func__, error);
-       else
+       } else {
                dev->open = 1;
+       }
 
        mutex_unlock(&dev->pm_mutex);
 
diff --git a/drivers/input/mouse/cyapa_gen6.c b/drivers/input/mouse/cyapa_gen6.c
index e4eb048d1bf6..c7ab84bc877f 100644
--- a/drivers/input/mouse/cyapa_gen6.c
+++ b/drivers/input/mouse/cyapa_gen6.c
@@ -573,7 +573,7 @@ static int cyapa_pip_retrieve_data_structure(struct cyapa 
*cyapa,
 
        memset(&cmd, 0, sizeof(cmd));
        put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &cmd.head.addr);
-       put_unaligned_le16(sizeof(cmd), &cmd.head.length - 2);
+       put_unaligned_le16(sizeof(cmd) - 2, &cmd.head.length);
        cmd.head.report_id = PIP_APP_CMD_REPORT_ID;
        cmd.head.cmd_code = PIP_RETRIEVE_DATA_STRUCTURE;
        put_unaligned_le16(read_offset, &cmd.read_offset);
diff --git a/drivers/input/serio/i8042-x86ia64io.h 
b/drivers/input/serio/i8042-x86ia64io.h
index 1f45010a5b81..fa07be0b4500 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -687,6 +687,48 @@ static const struct dmi_system_id __initconst 
i8042_dmi_reset_table[] = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
                },
        },
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A114-31"),
+               },
+       },
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A314-31"),
+               },
+       },
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A315-31"),
+               },
+       },
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-132"),
+               },
+       },
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-332"),
+               },
+       },
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-432"),
+               },
+       },
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate Spin B118-RN"),
+               },
+       },
        {
                /* Advent 4211 */
                .matches = {
diff --git a/drivers/input/touchscreen/ads7846.c 
b/drivers/input/touchscreen/ads7846.c
index a61b2153ab8c..1d98198c4bdf 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -35,6 +35,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/module.h>
 #include <asm/irq.h>
+#include <asm/unaligned.h>
 
 /*
  * This code has been heavily tested on a Nokia 770, and lightly
@@ -410,7 +411,7 @@ static int ads7845_read12_ser(struct device *dev, unsigned 
command)
 
        if (status == 0) {
                /* BE12 value, then padding */
-               status = be16_to_cpu(*((u16 *)&req->sample[1]));
+               status = get_unaligned_be16(&req->sample[1]);
                status = status >> 3;
                status &= 0x0fff;
        }
@@ -785,10 +786,11 @@ static void ads7846_report_state(struct ads7846 *ts)
                /* compute touch pressure resistance using equation #2 */
                Rt = z2;
                Rt -= z1;
-               Rt *= x;
                Rt *= ts->x_plate_ohms;
+               Rt = DIV_ROUND_CLOSEST(Rt, 16);
+               Rt *= x;
                Rt /= z1;
-               Rt = (Rt + 2047) >> 12;
+               Rt = DIV_ROUND_CLOSEST(Rt, 256);
        } else {
                Rt = 0;
        }
diff --git a/drivers/input/touchscreen/goodix.c 
b/drivers/input/touchscreen/goodix.c
index 67cadda13ab1..d7cc8f6a292e 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -77,6 +77,18 @@ static const struct dmi_system_id rotated_screen[] = {
                        DMI_MATCH(DMI_BIOS_DATE, "12/19/2014"),
                },
        },
+       {
+               .ident = "Teclast X98 Pro",
+               .matches = {
+                       /*
+                        * Only match BIOS date, because the manufacturers
+                        * BIOS does not report the board name at all
+                        * (sometimes)...
+                        */
+                       DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
+                       DMI_MATCH(DMI_BIOS_DATE, "10/28/2015"),
+               },
+       },
        {
                .ident = "WinBook TW100",
                .matches = {
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 9371194677dc..eab3f7325e31 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1539,6 +1539,7 @@ static int target_message(struct dm_ioctl *param, size_t 
param_size)
 
        if (!argc) {
                DMWARN("Empty message received.");
+               r = -EINVAL;
                goto out_argv;
        }
 
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 466158d06ab1..8eed39dc2036 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1154,12 +1154,6 @@ void dm_table_event_callback(struct dm_table *t,
 
 void dm_table_event(struct dm_table *t)
 {
-       /*
-        * You can no longer call dm_table_event() from interrupt
-        * context, use a bottom half instead.
-        */
-       BUG_ON(in_interrupt());
-
        mutex_lock(&_event_lock);
        if (t->event_fn)
                t->event_fn(t->event_context);
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c 
b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
index f33c0de3e849..019bbc18cede 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
@@ -184,7 +184,7 @@ int netup_spi_init(struct netup_unidvb_dev *ndev)
        struct spi_master *master;
        struct netup_spi *nspi;
 
-       master = spi_alloc_master(&ndev->pci_dev->dev,
+       master = devm_spi_alloc_master(&ndev->pci_dev->dev,
                sizeof(struct netup_spi));
        if (!master) {
                dev_err(&ndev->pci_dev->dev,
@@ -217,6 +217,7 @@ int netup_spi_init(struct netup_unidvb_dev *ndev)
                ndev->pci_slot,
                ndev->pci_func);
        if (!spi_new_device(master, &netup_spi_board)) {
+               spi_unregister_master(master);
                ndev->spi = NULL;
                dev_err(&ndev->pci_dev->dev,
                        "%s(): unable to create SPI device\n", __func__);
@@ -235,13 +236,13 @@ void netup_spi_release(struct netup_unidvb_dev *ndev)
        if (!spi)
                return;
 
+       spi_unregister_master(spi->master);
        spin_lock_irqsave(&spi->lock, flags);
        reg = readw(&spi->regs->control_stat);
        writew(reg | NETUP_SPI_CTRL_IRQ, &spi->regs->control_stat);
        reg = readw(&spi->regs->control_stat);
        writew(reg & ~NETUP_SPI_CTRL_IMASK, &spi->regs->control_stat);
        spin_unlock_irqrestore(&spi->lock, flags);
-       spi_unregister_master(spi->master);
        ndev->spi = NULL;
 }
 
diff --git a/drivers/media/pci/saa7146/mxb.c b/drivers/media/pci/saa7146/mxb.c
index 0ca1e07ae783..868af73c5536 100644
--- a/drivers/media/pci/saa7146/mxb.c
+++ b/drivers/media/pci/saa7146/mxb.c
@@ -652,16 +652,17 @@ static int vidioc_s_audio(struct file *file, void *fh, 
const struct v4l2_audio *
        struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
        DEB_D("VIDIOC_S_AUDIO %d\n", a->index);
-       if (mxb_inputs[mxb->cur_input].audioset & (1 << a->index)) {
-               if (mxb->cur_audinput != a->index) {
-                       mxb->cur_audinput = a->index;
-                       tea6420_route(mxb, a->index);
-                       if (mxb->cur_audinput == 0)
-                               mxb_update_audmode(mxb);
-               }
-               return 0;
+       if (a->index >= 32 ||
+           !(mxb_inputs[mxb->cur_input].audioset & (1 << a->index)))
+               return -EINVAL;
+
+       if (mxb->cur_audinput != a->index) {
+               mxb->cur_audinput = a->index;
+               tea6420_route(mxb, a->index);
+               if (mxb->cur_audinput == 0)
+                       mxb_update_audmode(mxb);
        }
-       return -EINVAL;
+       return 0;
 }
 
 #ifdef CONFIG_VIDEO_ADV_DEBUG
diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c 
b/drivers/media/pci/solo6x10/solo6x10-g723.c
index 4a37a1c51c48..30407955a4d1 100644
--- a/drivers/media/pci/solo6x10/solo6x10-g723.c
+++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
@@ -385,7 +385,7 @@ int solo_g723_init(struct solo_dev *solo_dev)
 
        ret = snd_ctl_add(card, snd_ctl_new1(&kctl, solo_dev));
        if (ret < 0)
-               return ret;
+               goto snd_error;
 
        ret = solo_snd_pcm_init(solo_dev);
        if (ret < 0)
diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c
index 40f77685cc4a..3ad7b67797e9 100644
--- a/drivers/media/rc/sunxi-cir.c
+++ b/drivers/media/rc/sunxi-cir.c
@@ -132,6 +132,8 @@ static irqreturn_t sunxi_ir_irq(int irqno, void *dev_id)
        } else if (status & REG_RXINT_RPEI_EN) {
                ir_raw_event_set_idle(ir->rc, true);
                ir_raw_event_handle(ir->rc);
+       } else {
+               ir_raw_event_handle(ir->rc);
        }
 
        spin_unlock(&ir->ir_lock);
diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c
index 3733c15c753e..17b7b02330c9 100644
--- a/drivers/media/usb/gspca/gspca.c
+++ b/drivers/media/usb/gspca/gspca.c
@@ -2130,6 +2130,7 @@ out:
                input_unregister_device(gspca_dev->input_dev);
 #endif
        v4l2_ctrl_handler_free(gspca_dev->vdev.ctrl_handler);
+       v4l2_device_unregister(&gspca_dev->v4l2_dev);
        kfree(gspca_dev->usb_buf);
        kfree(gspca_dev);
        return ret;
diff --git a/drivers/media/usb/msi2500/msi2500.c 
b/drivers/media/usb/msi2500/msi2500.c
index e06a21a4fbd9..322238d9aa71 100644
--- a/drivers/media/usb/msi2500/msi2500.c
+++ b/drivers/media/usb/msi2500/msi2500.c
@@ -1254,7 +1254,7 @@ static int msi2500_probe(struct usb_interface *intf,
        }
 
        dev->master = master;
-       master->bus_num = 0;
+       master->bus_num = -1;
        master->num_chipselect = 1;
        master->transfer_one_message = msi2500_transfer_one_message;
        spi_master_set_devdata(master, dev);
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
index 1041eb7a6167..2cae85a7ca6d 100644
--- a/drivers/memstick/core/memstick.c
+++ b/drivers/memstick/core/memstick.c
@@ -469,7 +469,6 @@ static void memstick_check(struct work_struct *work)
                        host->card = card;
                        if (device_register(&card->dev)) {
                                put_device(&card->dev);
-                               kfree(host->card);
                                host->card = NULL;
                        }
                } else
diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index ef09ba0289d7..b3857445d673 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -763,8 +763,10 @@ static int r592_probe(struct pci_dev *pdev, const struct 
pci_device_id *id)
                goto error3;
 
        dev->mmio = pci_ioremap_bar(pdev, 0);
-       if (!dev->mmio)
+       if (!dev->mmio) {
+               error = -ENOMEM;
                goto error4;
+       }
 
        dev->irq = pdev->irq;
        spin_lock_init(&dev->irq_lock);
@@ -791,12 +793,14 @@ static int r592_probe(struct pci_dev *pdev, const struct 
pci_device_id *id)
                &dev->dummy_dma_page_physical_address, GFP_KERNEL);
        r592_stop_dma(dev , 0);
 
-       if (request_irq(dev->irq, &r592_irq, IRQF_SHARED,
-                         DRV_NAME, dev))
+       error = request_irq(dev->irq, &r592_irq, IRQF_SHARED,
+                         DRV_NAME, dev);
+       if (error)
                goto error6;
 
        r592_update_card_detect(dev);
-       if (memstick_add_host(host))
+       error = memstick_add_host(host);
+       if (error)
                goto error7;
 
        message("driver successfully loaded");
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index ffbc9b304beb..ab5b023ad279 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -228,7 +228,7 @@ static int mtdpart_setup_real(char *s)
                struct cmdline_mtd_partition *this_mtd;
                struct mtd_partition *parts;
                int mtd_id_len, num_parts;
-               char *p, *mtd_id, *semicol;
+               char *p, *mtd_id, *semicol, *open_parenth;
 
                /*
                 * Replace the first ';' by a NULL char so strrchr can work
@@ -238,6 +238,14 @@ static int mtdpart_setup_real(char *s)
                if (semicol)
                        *semicol = '\0';
 
+               /*
+                * make sure that part-names with ":" will not be handled as
+                * part of the mtd-id with an ":"
+                */
+               open_parenth = strchr(s, '(');
+               if (open_parenth)
+                       *open_parenth = '\0';
+
                mtd_id = s;
 
                /*
@@ -247,6 +255,10 @@ static int mtdpart_setup_real(char *s)
                 */
                p = strrchr(s, ':');
 
+               /* Restore the '(' now. */
+               if (open_parenth)
+                       *open_parenth = '(';
+
                /* Restore the ';' now. */
                if (semicol)
                        *semicol = ';';
diff --git a/drivers/net/can/softing/softing_main.c 
b/drivers/net/can/softing/softing_main.c
index 7621f91a8a20..fd48770ba792 100644
--- a/drivers/net/can/softing/softing_main.c
+++ b/drivers/net/can/softing/softing_main.c
@@ -393,8 +393,13 @@ static int softing_netdev_open(struct net_device *ndev)
 
        /* check or determine and set bittime */
        ret = open_candev(ndev);
-       if (!ret)
-               ret = softing_startstop(ndev, 1);
+       if (ret)
+               return ret;
+
+       ret = softing_startstop(ndev, 1);
+       if (ret < 0)
+               close_candev(ndev);
+
        return ret;
 }
 
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c 
b/drivers/net/ethernet/allwinner/sun4i-emac.c
index dde3cd2d4763..10dda58849c6 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -853,13 +853,13 @@ static int emac_probe(struct platform_device *pdev)
        db->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(db->clk)) {
                ret = PTR_ERR(db->clk);
-               goto out_iounmap;
+               goto out_dispose_mapping;
        }
 
        ret = clk_prepare_enable(db->clk);
        if (ret) {
                dev_err(&pdev->dev, "Error couldn't enable clock (%d)\n", ret);
-               goto out_iounmap;
+               goto out_dispose_mapping;
        }
 
        ret = sunxi_sram_claim(&pdev->dev);
@@ -916,6 +916,8 @@ out_release_sram:
        sunxi_sram_release(&pdev->dev);
 out_clk_disable_unprepare:
        clk_disable_unprepare(db->clk);
+out_dispose_mapping:
+       irq_dispose_mapping(ndev->irq);
 out_iounmap:
        iounmap(db->membase);
 out:
@@ -934,6 +936,7 @@ static int emac_remove(struct platform_device *pdev)
        unregister_netdev(ndev);
        sunxi_sram_release(&pdev->dev);
        clk_disable_unprepare(db->clk);
+       irq_dispose_mapping(ndev->irq);
        iounmap(db->membase);
        free_netdev(ndev);
 
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c 
b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index bae8df951780..3a6cebff9f42 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3518,8 +3518,10 @@ static int bcmgenet_probe(struct platform_device *pdev)
        clk_disable_unprepare(priv->clk);
 
        err = register_netdev(dev);
-       if (err)
+       if (err) {
+               bcmgenet_mii_exit(dev);
                goto err;
+       }
 
        return err;
 
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index b491de946a0e..88f5c45d9eef 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -216,7 +216,7 @@ static int korina_send_packet(struct sk_buff *skb, struct 
net_device *dev)
                        dev_kfree_skb_any(skb);
                        spin_unlock_irqrestore(&lp->lock, flags);
 
-                       return NETDEV_TX_BUSY;
+                       return NETDEV_TX_OK;
                }
        }
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c 
b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 7d61a5de9d5a..b7bde70a3e95 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1313,8 +1313,10 @@ static void mlx4_en_tx_timeout(struct net_device *dev)
        }
 
        priv->port_stats.tx_timeout++;
-       en_dbg(DRV, priv, "Scheduling watchdog\n");
-       queue_work(mdev->workqueue, &priv->watchdog_task);
+       if (!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state)) {
+               en_dbg(DRV, priv, "Scheduling port restart\n");
+               queue_work(mdev->workqueue, &priv->restart_task);
+       }
 }
 
 
@@ -1730,6 +1732,7 @@ int mlx4_en_start_port(struct net_device *dev)
                local_bh_enable();
        }
 
+       clear_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state);
        netif_tx_start_all_queues(dev);
        netif_device_attach(dev);
 
@@ -1891,7 +1894,7 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 static void mlx4_en_restart(struct work_struct *work)
 {
        struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
-                                                watchdog_task);
+                                                restart_task);
        struct mlx4_en_dev *mdev = priv->mdev;
        struct net_device *dev = priv->dev;
 
@@ -2121,7 +2124,7 @@ static int mlx4_en_change_mtu(struct net_device *dev, int 
new_mtu)
        if (netif_running(dev)) {
                mutex_lock(&mdev->state_lock);
                if (!mdev->device_up) {
-                       /* NIC is probably restarting - let watchdog task reset
+                       /* NIC is probably restarting - let restart task reset
                         * the port */
                        en_dbg(DRV, priv, "Change MTU called with card 
down!?\n");
                } else {
@@ -2130,7 +2133,9 @@ static int mlx4_en_change_mtu(struct net_device *dev, int 
new_mtu)
                        if (err) {
                                en_err(priv, "Failed restarting port:%d\n",
                                         priv->port);
-                               queue_work(mdev->workqueue, 
&priv->watchdog_task);
+                               if 
(!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING,
+                                                     &priv->state))
+                                       queue_work(mdev->workqueue, 
&priv->restart_task);
                        }
                }
                mutex_unlock(&mdev->state_lock);
@@ -2850,7 +2855,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int 
port,
        priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev);
        spin_lock_init(&priv->stats_lock);
        INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
-       INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
+       INIT_WORK(&priv->restart_task, mlx4_en_restart);
        INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
        INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
        INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h 
b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 607daaffae98..440f1ab6d92e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -495,6 +495,10 @@ struct mlx4_en_stats_bitmap {
        struct mutex mutex; /* for mutual access to stats bitmap */
 };
 
+enum {
+       MLX4_EN_STATE_FLAG_RESTARTING,
+};
+
 struct mlx4_en_priv {
        struct mlx4_en_dev *mdev;
        struct mlx4_en_port_profile *prof;
@@ -560,7 +564,7 @@ struct mlx4_en_priv {
        struct mlx4_en_cq *rx_cq[MAX_RX_RINGS];
        struct mlx4_qp drop_qp;
        struct work_struct rx_mode_task;
-       struct work_struct watchdog_task;
+       struct work_struct restart_task;
        struct work_struct linkstate_task;
        struct delayed_work stats_task;
        struct delayed_work service_task;
@@ -605,6 +609,7 @@ struct mlx4_en_priv {
        u32 pflags;
        u8 rss_key[MLX4_EN_RSS_KEY_SIZE];
        u8 rss_hash_fn;
+       unsigned long state;
 };
 
 enum mlx4_en_wol {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c 
b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 1205f6f9c941..a4b10776f834 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2506,6 +2506,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct 
pci_device_id *ent)
                qlcnic_sriov_vf_register_map(ahw);
                break;
        default:
+               err = -EINVAL;
                goto err_out_free_hw_res;
        }
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c 
b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6f695239e658..d9462ee91a4b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1897,9 +1897,6 @@ static int stmmac_release(struct net_device *dev)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
 
-       if (priv->eee_enabled)
-               del_timer_sync(&priv->eee_ctrl_timer);
-
        /* Stop and disconnect the PHY */
        if (priv->phydev) {
                phy_stop(priv->phydev);
@@ -1920,6 +1917,11 @@ static int stmmac_release(struct net_device *dev)
        if (priv->lpi_irq > 0)
                free_irq(priv->lpi_irq, dev);
 
+       if (priv->eee_enabled) {
+               priv->tx_path_in_lpi_mode = false;
+               del_timer_sync(&priv->eee_ctrl_timer);
+       }
+
        /* Stop TX/RX DMA and clear the descriptors */
        priv->hw->dma->stop_tx(priv->ioaddr);
        priv->hw->dma->stop_rx(priv->ioaddr);
@@ -3068,6 +3070,11 @@ int stmmac_suspend(struct net_device *ndev)
 
        napi_disable(&priv->napi);
 
+       if (priv->eee_enabled) {
+               priv->tx_path_in_lpi_mode = false;
+               del_timer_sync(&priv->eee_ctrl_timer);
+       }
+
        /* Stop TX/RX DMA */
        priv->hw->dma->stop_tx(priv->ioaddr);
        priv->hw->dma->stop_rx(priv->ioaddr);
diff --git a/drivers/net/wireless/cw1200/main.c 
b/drivers/net/wireless/cw1200/main.c
index 317daa968e03..057725b06f64 100644
--- a/drivers/net/wireless/cw1200/main.c
+++ b/drivers/net/wireless/cw1200/main.c
@@ -385,6 +385,7 @@ static struct ieee80211_hw *cw1200_init_common(const u8 
*macaddr,
                                    CW1200_LINK_ID_MAX,
                                    cw1200_skb_dtor,
                                    priv)) {
+               destroy_workqueue(priv->workqueue);
                ieee80211_free_hw(hw);
                return NULL;
        }
@@ -396,6 +397,7 @@ static struct ieee80211_hw *cw1200_init_common(const u8 
*macaddr,
                        for (; i > 0; i--)
                                cw1200_queue_deinit(&priv->tx_queue[i - 1]);
                        cw1200_queue_stats_deinit(&priv->tx_queue_stats);
+                       destroy_workqueue(priv->workqueue);
                        ieee80211_free_hw(hw);
                        return NULL;
                }
diff --git a/drivers/net/wireless/orinoco/orinoco_usb.c 
b/drivers/net/wireless/orinoco/orinoco_usb.c
index 3c5baccd6792..8eb73d54b1d6 100644
--- a/drivers/net/wireless/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/orinoco/orinoco_usb.c
@@ -1224,13 +1224,6 @@ static netdev_tx_t ezusb_xmit(struct sk_buff *skb, 
struct net_device *dev)
        if (skb->len < ETH_HLEN)
                goto drop;
 
-       ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_TX, 0);
-       if (!ctx)
-               goto busy;
-
-       memset(ctx->buf, 0, BULK_BUF_SIZE);
-       buf = ctx->buf->data;
-
        tx_control = 0;
 
        err = orinoco_process_xmit_skb(skb, dev, priv, &tx_control,
@@ -1238,6 +1231,13 @@ static netdev_tx_t ezusb_xmit(struct sk_buff *skb, 
struct net_device *dev)
        if (err)
                goto drop;
 
+       ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_TX, 0);
+       if (!ctx)
+               goto drop;
+
+       memset(ctx->buf, 0, BULK_BUF_SIZE);
+       buf = ctx->buf->data;
+
        {
                __le16 *tx_cntl = (__le16 *)buf;
                *tx_cntl = cpu_to_le16(tx_control);
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 56ebd8267386..21c8e2720b40 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -697,12 +697,14 @@ static int xen_register_watchers(struct xenbus_device 
*dev, struct xenvif *vif)
                return -ENOMEM;
        snprintf(node, maxlen, "%s/rate", dev->nodename);
        vif->credit_watch.node = node;
+       vif->credit_watch.will_handle = NULL;
        vif->credit_watch.callback = xen_net_rate_changed;
        err = register_xenbus_watch(&vif->credit_watch);
        if (err) {
                pr_err("Failed to set watcher %s\n", vif->credit_watch.node);
                kfree(node);
                vif->credit_watch.node = NULL;
+               vif->credit_watch.will_handle = NULL;
                vif->credit_watch.callback = NULL;
        }
        return err;
@@ -847,7 +849,7 @@ static void connect(struct backend_info *be)
        xenvif_carrier_on(be->vif);
 
        unregister_hotplug_status_watch(be);
-       err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch,
+       err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, NULL,
                                   hotplug_status_changed,
                                   "%s/%s", dev->nodename, "hotplug-status");
        if (!err)
diff --git a/drivers/nfc/s3fwrn5/firmware.c b/drivers/nfc/s3fwrn5/firmware.c
index 64a90252c57f..b387845d3c72 100644
--- a/drivers/nfc/s3fwrn5/firmware.c
+++ b/drivers/nfc/s3fwrn5/firmware.c
@@ -304,8 +304,10 @@ static int s3fwrn5_fw_request_firmware(struct 
s3fwrn5_fw_info *fw_info)
        if (ret < 0)
                return ret;
 
-       if (fw->fw->size < S3FWRN5_FW_IMAGE_HEADER_SIZE)
+       if (fw->fw->size < S3FWRN5_FW_IMAGE_HEADER_SIZE) {
+               release_firmware(fw->fw);
                return -EINVAL;
+       }
 
        memcpy(fw->date, fw->fw->data + 0x00, 12);
        fw->date[12] = '\0';
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 01a343ad7155..14d84d5a0f58 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -307,6 +307,9 @@ placeholder:
                goto err;
        }
 
+       INIT_LIST_HEAD(&slot->list);
+       list_add(&slot->list, &parent->slots);
+
        err = kobject_init_and_add(&slot->kobj, &pci_slot_ktype, NULL,
                                   "%s", slot_name);
        if (err) {
@@ -314,9 +317,6 @@ placeholder:
                goto err;
        }
 
-       INIT_LIST_HEAD(&slot->list);
-       list_add(&slot->list, &parent->slots);
-
        down_read(&pci_bus_sem);
        list_for_each_entry(dev, &parent->devices, bus_list)
                if (PCI_SLOT(dev->devfn) == slot_nr)
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index a3b27856b9e9..43440b6b85bc 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -399,7 +399,6 @@ static int amd_gpio_irq_set_type(struct irq_data *d, 
unsigned int type)
                pin_reg &= ~BIT(LEVEL_TRIG_OFF);
                pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
                pin_reg |= ACTIVE_HIGH << ACTIVE_LEVEL_OFF;
-               pin_reg |= DB_TYPE_REMOVE_GLITCH << DB_CNTRL_OFF;
                irq_set_handler_locked(d, handle_edge_irq);
                break;
 
@@ -407,7 +406,6 @@ static int amd_gpio_irq_set_type(struct irq_data *d, 
unsigned int type)
                pin_reg &= ~BIT(LEVEL_TRIG_OFF);
                pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
                pin_reg |= ACTIVE_LOW << ACTIVE_LEVEL_OFF;
-               pin_reg |= DB_TYPE_REMOVE_GLITCH << DB_CNTRL_OFF;
                irq_set_handler_locked(d, handle_edge_irq);
                break;
 
@@ -415,7 +413,6 @@ static int amd_gpio_irq_set_type(struct irq_data *d, 
unsigned int type)
                pin_reg &= ~BIT(LEVEL_TRIG_OFF);
                pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
                pin_reg |= BOTH_EADGE << ACTIVE_LEVEL_OFF;
-               pin_reg |= DB_TYPE_REMOVE_GLITCH << DB_CNTRL_OFF;
                irq_set_handler_locked(d, handle_edge_irq);
                break;
 
@@ -423,8 +420,6 @@ static int amd_gpio_irq_set_type(struct irq_data *d, 
unsigned int type)
                pin_reg |= LEVEL_TRIGGER << LEVEL_TRIG_OFF;
                pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
                pin_reg |= ACTIVE_HIGH << ACTIVE_LEVEL_OFF;
-               pin_reg &= ~(DB_CNTRl_MASK << DB_CNTRL_OFF);
-               pin_reg |= DB_TYPE_PRESERVE_LOW_GLITCH << DB_CNTRL_OFF;
                irq_set_handler_locked(d, handle_level_irq);
                break;
 
@@ -432,8 +427,6 @@ static int amd_gpio_irq_set_type(struct irq_data *d, 
unsigned int type)
                pin_reg |= LEVEL_TRIGGER << LEVEL_TRIG_OFF;
                pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
                pin_reg |= ACTIVE_LOW << ACTIVE_LEVEL_OFF;
-               pin_reg &= ~(DB_CNTRl_MASK << DB_CNTRL_OFF);
-               pin_reg |= DB_TYPE_PRESERVE_HIGH_GLITCH << DB_CNTRL_OFF;
                irq_set_handler_locked(d, handle_level_irq);
                break;
 
diff --git a/drivers/pinctrl/pinctrl-falcon.c b/drivers/pinctrl/pinctrl-falcon.c
index 0b0fc2eb48e0..adcdb0585d39 100644
--- a/drivers/pinctrl/pinctrl-falcon.c
+++ b/drivers/pinctrl/pinctrl-falcon.c
@@ -438,24 +438,28 @@ static int pinctrl_falcon_probe(struct platform_device 
*pdev)
 
        /* load and remap the pad resources of the different banks */
        for_each_compatible_node(np, NULL, "lantiq,pad-falcon") {
-               struct platform_device *ppdev = of_find_device_by_node(np);
                const __be32 *bank = of_get_property(np, "lantiq,bank", NULL);
                struct resource res;
+               struct platform_device *ppdev;
                u32 avail;
                int pins;
 
                if (!of_device_is_available(np))
                        continue;
 
-               if (!ppdev) {
-                       dev_err(&pdev->dev, "failed to find pad pdev\n");
-                       continue;
-               }
                if (!bank || *bank >= PORTS)
                        continue;
                if (of_address_to_resource(np, 0, &res))
                        continue;
+
+               ppdev = of_find_device_by_node(np);
+               if (!ppdev) {
+                       dev_err(&pdev->dev, "failed to find pad pdev\n");
+                       continue;
+               }
+
                falcon_info.clk[*bank] = clk_get(&ppdev->dev, NULL);
+               put_device(&ppdev->dev);
                if (IS_ERR(falcon_info.clk[*bank])) {
                        dev_err(&ppdev->dev, "failed to get clock\n");
                        return PTR_ERR(falcon_info.clk[*bank]);
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 5c169a837ebd..b336f2620f9d 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -124,6 +124,7 @@ static const struct key_entry acer_wmi_keymap[] __initconst 
= {
        {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
        {KE_IGNORE, 0x81, {KEY_SLEEP} },
        {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
+       {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard 
background light toggle */
        {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
        {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
        {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
diff --git a/drivers/ps3/ps3stor_lib.c b/drivers/ps3/ps3stor_lib.c
index 8c3f5adf1bc6..2d7618375662 100644
--- a/drivers/ps3/ps3stor_lib.c
+++ b/drivers/ps3/ps3stor_lib.c
@@ -201,7 +201,7 @@ int ps3stor_setup(struct ps3_storage_device *dev, 
irq_handler_t handler)
        dev->bounce_lpar = ps3_mm_phys_to_lpar(__pa(dev->bounce_buf));
        dev->bounce_dma = dma_map_single(&dev->sbd.core, dev->bounce_buf,
                                         dev->bounce_size, DMA_BIDIRECTIONAL);
-       if (!dev->bounce_dma) {
+       if (dma_mapping_error(&dev->sbd.core, dev->bounce_dma)) {
                dev_err(&dev->sbd.core, "%s:%u: map DMA region failed\n",
                        __func__, __LINE__);
                error = -ENODEV;
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 6601047d4b65..89b708135000 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -258,7 +258,6 @@ void dasd_alias_disconnect_device_from_lcu(struct 
dasd_device *device)
                return;
        device->discipline->get_uid(device, &uid);
        spin_lock_irqsave(&lcu->lock, flags);
-       list_del_init(&device->alias_list);
        /* make sure that the workers don't use this device */
        if (device == lcu->suc_data.device) {
                spin_unlock_irqrestore(&lcu->lock, flags);
@@ -285,6 +284,7 @@ void dasd_alias_disconnect_device_from_lcu(struct 
dasd_device *device)
 
        spin_lock_irqsave(&aliastree.lock, flags);
        spin_lock(&lcu->lock);
+       list_del_init(&device->alias_list);
        if (list_empty(&lcu->grouplist) &&
            list_empty(&lcu->active_devices) &&
            list_empty(&lcu->inactive_devices)) {
@@ -637,6 +637,7 @@ int dasd_alias_add_device(struct dasd_device *device)
        }
        if (lcu->flags & UPDATE_PENDING) {
                list_move(&device->alias_list, &lcu->active_devices);
+               private->pavgroup = NULL;
                _schedule_lcu_update(lcu, device);
        }
        spin_unlock(&lcu->lock);
diff --git a/drivers/scsi/bnx2i/Kconfig b/drivers/scsi/bnx2i/Kconfig
index ba30ff86d581..b27a3738d940 100644
--- a/drivers/scsi/bnx2i/Kconfig
+++ b/drivers/scsi/bnx2i/Kconfig
@@ -3,6 +3,7 @@ config SCSI_BNX2_ISCSI
        depends on NET
        depends on PCI
        depends on (IPV6 || IPV6=n)
+       depends on MMU
        select SCSI_ISCSI_ATTRS
        select NETDEVICES
        select ETHERNET
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index 58ce9020d69c..389c13e1c978 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -735,6 +735,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct 
pci_device_id *ent)
        for (i = 0; i < FNIC_IO_LOCKS; i++)
                spin_lock_init(&fnic->io_req_lock[i]);
 
+       err = -ENOMEM;
        fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache);
        if (!fnic->io_req_pool)
                goto err_out_free_resources;
diff --git a/drivers/scsi/pm8001/pm8001_init.c 
b/drivers/scsi/pm8001/pm8001_init.c
index 062ab34b86f8..a982701bc3e0 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -1063,7 +1063,8 @@ static int pm8001_pci_probe(struct pci_dev *pdev,
 
        pm8001_init_sas_add(pm8001_ha);
        /* phy setting support for motherboard controller */
-       if (pm8001_configure_phy_settings(pm8001_ha))
+       rc = pm8001_configure_phy_settings(pm8001_ha);
+       if (rc)
                goto err_out_shost;
 
        pm8001_post_sas_ha_init(shost, chip);
diff --git a/drivers/soc/tegra/fuse/speedo-tegra210.c 
b/drivers/soc/tegra/fuse/speedo-tegra210.c
index 5373f4c16b54..4403b89561fd 100644
--- a/drivers/soc/tegra/fuse/speedo-tegra210.c
+++ b/drivers/soc/tegra/fuse/speedo-tegra210.c
@@ -105,7 +105,7 @@ static int get_process_id(int value, const u32 *speedos, 
unsigned int num)
        unsigned int i;
 
        for (i = 0; i < num; i++)
-               if (value < speedos[num])
+               if (value < speedos[i])
                        return i;
 
        return -EINVAL;
diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index bc1b80ec6afe..838b87adf48b 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -752,8 +752,9 @@ static int knav_dma_probe(struct platform_device *pdev)
        pm_runtime_enable(kdev->dev);
        ret = pm_runtime_get_sync(kdev->dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(kdev->dev);
                dev_err(kdev->dev, "unable to enable pktdma, err %d\n", ret);
-               return ret;
+               goto err_pm_disable;
        }
 
        /* Initialise all packet dmas */
@@ -767,13 +768,21 @@ static int knav_dma_probe(struct platform_device *pdev)
 
        if (list_empty(&kdev->list)) {
                dev_err(dev, "no valid dma instance\n");
-               return -ENODEV;
+               ret = -ENODEV;
+               goto err_put_sync;
        }
 
        debugfs_create_file("knav_dma", S_IFREG | S_IRUGO, NULL, NULL,
                            &knav_dma_debug_ops);
 
        return ret;
+
+err_put_sync:
+       pm_runtime_put_sync(kdev->dev);
+err_pm_disable:
+       pm_runtime_disable(kdev->dev);
+
+       return ret;
 }
 
 static int knav_dma_remove(struct platform_device *pdev)
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 8c03a80b482d..1aff6659655e 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -1717,6 +1717,7 @@ static int knav_queue_probe(struct platform_device *pdev)
        pm_runtime_enable(&pdev->dev);
        ret = pm_runtime_get_sync(&pdev->dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(&pdev->dev);
                dev_err(dev, "Failed to enable QMSS\n");
                return ret;
        }
@@ -1784,9 +1785,10 @@ static int knav_queue_probe(struct platform_device *pdev)
        if (ret)
                goto err;
 
-       regions =  of_get_child_by_name(node, "descriptor-regions");
+       regions = of_get_child_by_name(node, "descriptor-regions");
        if (!regions) {
                dev_err(dev, "descriptor-regions not specified\n");
+               ret = -ENODEV;
                goto err;
        }
        ret = knav_queue_setup_regions(kdev, regions);
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 8b9c2a38d1cc..a81a3cbf1439 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -706,4 +706,7 @@ endif # SPI_MASTER
 
 # (slave support would go here)
 
+config SPI_DYNAMIC
+       def_bool ACPI || OF_DYNAMIC || SPI_SLAVE
+
 endif # SPI
diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c
index 5ffc2765a8dd..0b5aff090b2e 100644
--- a/drivers/spi/spi-bcm2835aux.c
+++ b/drivers/spi/spi-bcm2835aux.c
@@ -381,7 +381,7 @@ static int bcm2835aux_spi_probe(struct platform_device 
*pdev)
        unsigned long clk_hz;
        int err;
 
-       master = spi_alloc_master(&pdev->dev, sizeof(*bs));
+       master = devm_spi_alloc_master(&pdev->dev, sizeof(*bs));
        if (!master) {
                dev_err(&pdev->dev, "spi_alloc_master() failed\n");
                return -ENOMEM;
@@ -411,30 +411,27 @@ static int bcm2835aux_spi_probe(struct platform_device 
*pdev)
        /* the main area */
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        bs->regs = devm_ioremap_resource(&pdev->dev, res);
-       if (IS_ERR(bs->regs)) {
-               err = PTR_ERR(bs->regs);
-               goto out_master_put;
-       }
+       if (IS_ERR(bs->regs))
+               return PTR_ERR(bs->regs);
 
        bs->clk = devm_clk_get(&pdev->dev, NULL);
        if ((!bs->clk) || (IS_ERR(bs->clk))) {
                err = PTR_ERR(bs->clk);
                dev_err(&pdev->dev, "could not get clk: %d\n", err);
-               goto out_master_put;
+               return err;
        }
 
        bs->irq = platform_get_irq(pdev, 0);
        if (bs->irq <= 0) {
                dev_err(&pdev->dev, "could not get IRQ: %d\n", bs->irq);
-               err = bs->irq ? bs->irq : -ENODEV;
-               goto out_master_put;
+               return bs->irq ? bs->irq : -ENODEV;
        }
 
        /* this also enables the HW block */
        err = clk_prepare_enable(bs->clk);
        if (err) {
                dev_err(&pdev->dev, "could not prepare clock: %d\n", err);
-               goto out_master_put;
+               return err;
        }
 
        /* just checking if the clock returns a sane value */
@@ -467,8 +464,6 @@ static int bcm2835aux_spi_probe(struct platform_device 
*pdev)
 
 out_clk_disable:
        clk_disable_unprepare(bs->clk);
-out_master_put:
-       spi_master_put(master);
        return err;
 }
 
diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index c46c0738c734..e58319e58ba4 100644
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -773,8 +773,10 @@ static int img_spfi_resume(struct device *dev)
        int ret;
 
        ret = pm_runtime_get_sync(dev);
-       if (ret)
+       if (ret) {
+               pm_runtime_put_noidle(dev);
                return ret;
+       }
        spfi_reset(spfi);
        pm_runtime_put(dev);
 
diff --git a/drivers/spi/spi-rb4xx.c b/drivers/spi/spi-rb4xx.c
index 3641d0e20135..1d7fd6dbaf87 100644
--- a/drivers/spi/spi-rb4xx.c
+++ b/drivers/spi/spi-rb4xx.c
@@ -148,7 +148,7 @@ static int rb4xx_spi_probe(struct platform_device *pdev)
        if (IS_ERR(spi_base))
                return PTR_ERR(spi_base);
 
-       master = spi_alloc_master(&pdev->dev, sizeof(*rbspi));
+       master = devm_spi_alloc_master(&pdev->dev, sizeof(*rbspi));
        if (!master)
                return -ENOMEM;
 
diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index e37712bed0b2..d1ca8f619b82 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -801,6 +801,7 @@ static int tegra_spi_setup(struct spi_device *spi)
 
        ret = pm_runtime_get_sync(tspi->dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(tspi->dev);
                dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret);
                return ret;
        }
@@ -1214,6 +1215,7 @@ static int tegra_spi_resume(struct device *dev)
 
        ret = pm_runtime_get_sync(dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(dev);
                dev_err(dev, "pm runtime failed, e = %d\n", ret);
                return ret;
        }
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index b6558bb6f9df..4b9541e1726a 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -564,6 +564,7 @@ static int tegra_sflash_resume(struct device *dev)
 
        ret = pm_runtime_get_sync(dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(dev);
                dev_err(dev, "pm runtime failed, e = %d\n", ret);
                return ret;
        }
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index cf2a329fd895..9f14560686b6 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -761,6 +761,7 @@ static int tegra_slink_setup(struct spi_device *spi)
 
        ret = pm_runtime_get_sync(tspi->dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(tspi->dev);
                dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret);
                return ret;
        }
@@ -1197,6 +1198,7 @@ static int tegra_slink_resume(struct device *dev)
 
        ret = pm_runtime_get_sync(dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(dev);
                dev_err(dev, "pm runtime failed, e = %d\n", ret);
                return ret;
        }
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index 5044c6198332..6e97f71a8cea 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -159,6 +159,7 @@ static int ti_qspi_setup(struct spi_device *spi)
 
        ret = pm_runtime_get_sync(qspi->dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(qspi->dev);
                dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
                return ret;
        }
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index ed87f71a428d..e85feee750e3 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -418,6 +418,12 @@ static LIST_HEAD(spi_master_list);
  */
 static DEFINE_MUTEX(board_lock);
 
+/*
+ * Prevents addition of devices with same chip select and
+ * addition of devices below an unregistering controller.
+ */
+static DEFINE_MUTEX(spi_add_lock);
+
 /**
  * spi_alloc_device - Allocate a new SPI device
  * @master: Controller to which device is connected
@@ -496,7 +502,6 @@ static int spi_dev_check(struct device *dev, void *data)
  */
 int spi_add_device(struct spi_device *spi)
 {
-       static DEFINE_MUTEX(spi_add_lock);
        struct spi_master *master = spi->master;
        struct device *dev = master->dev.parent;
        int status;
@@ -525,6 +530,13 @@ int spi_add_device(struct spi_device *spi)
                goto done;
        }
 
+       /* Controller may unregister concurrently */
+       if (IS_ENABLED(CONFIG_SPI_DYNAMIC) &&
+           !device_is_registered(&master->dev)) {
+               status = -ENODEV;
+               goto done;
+       }
+
        if (master->cs_gpios)
                spi->cs_gpio = master->cs_gpios[spi->chip_select];
 
@@ -1962,6 +1974,10 @@ static int __unregister(struct device *dev, void *null)
  */
 void spi_unregister_master(struct spi_master *master)
 {
+       /* Prevent addition of new devices, unregister existing ones */
+       if (IS_ENABLED(CONFIG_SPI_DYNAMIC))
+               mutex_lock(&spi_add_lock);
+
        device_for_each_child(&master->dev, NULL, __unregister);
 
        if (master->queued) {
@@ -1981,6 +1997,9 @@ void spi_unregister_master(struct spi_master *master)
        if (!devres_find(master->dev.parent, devm_spi_release_master,
                         devm_spi_match_master, master))
                put_device(&master->dev);
+
+       if (IS_ENABLED(CONFIG_SPI_DYNAMIC))
+               mutex_unlock(&spi_add_lock);
 }
 EXPORT_SYMBOL_GPL(spi_unregister_master);
 
diff --git a/drivers/staging/comedi/drivers/mf6x4.c 
b/drivers/staging/comedi/drivers/mf6x4.c
index fbdf181d8ccc..40aa24a9b2c3 100644
--- a/drivers/staging/comedi/drivers/mf6x4.c
+++ b/drivers/staging/comedi/drivers/mf6x4.c
@@ -121,8 +121,9 @@ static int mf6x4_ai_eoc(struct comedi_device *dev,
        struct mf6x4_private *devpriv = dev->private;
        unsigned int status;
 
+       /* EOLC goes low at end of conversion. */
        status = ioread32(devpriv->gpioc_reg);
-       if (status & MF6X4_GPIOC_EOLC)
+       if ((status & MF6X4_GPIOC_EOLC) == 0)
                return 0;
        return -EBUSY;
 }
diff --git a/drivers/staging/speakup/speakup_dectlk.c 
b/drivers/staging/speakup/speakup_dectlk.c
index 09063b82326f..71aa623facd6 100644
--- a/drivers/staging/speakup/speakup_dectlk.c
+++ b/drivers/staging/speakup/speakup_dectlk.c
@@ -51,7 +51,7 @@ static unsigned char get_index(void);
 static int in_escape;
 static int is_flushing;
 
-static spinlock_t flush_lock;
+static DEFINE_SPINLOCK(flush_lock);
 static DECLARE_WAIT_QUEUE_HEAD(flush);
 
 static struct var_t vars[] = {
diff --git a/drivers/tty/serial/8250/8250_omap.c 
b/drivers/tty/serial/8250/8250_omap.c
index 0377b35d62b8..4bcb8dfa4874 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -155,11 +155,6 @@ static void omap_8250_mdr1_errataset(struct uart_8250_port 
*up,
                                     struct omap8250_priv *priv)
 {
        u8 timeout = 255;
-       u8 old_mdr1;
-
-       old_mdr1 = serial_in(up, UART_OMAP_MDR1);
-       if (old_mdr1 == priv->mdr1)
-               return;
 
        serial_out(up, UART_OMAP_MDR1, priv->mdr1);
        udelay(2);
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c 
b/drivers/usb/chipidea/ci_hdrc_imx.c
index 2949289bb3c5..97eb52b97605 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -58,7 +58,8 @@ static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data 
= {
 
 static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = {
        .flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
-               CI_HDRC_TURN_VBUS_EARLY_ON,
+               CI_HDRC_TURN_VBUS_EARLY_ON |
+               CI_HDRC_DISABLE_DEVICE_STREAMING,
 };
 
 static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = {
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 34d8cece6dd3..5d109717ac4e 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -189,6 +189,9 @@ static const struct usb_device_id usb_quirk_list[] = {
        { USB_DEVICE(0x06a3, 0x0006), .driver_info =
                        USB_QUIRK_CONFIG_INTF_STRINGS },
 
+       /* Agfa SNAPSCAN 1212U */
+       { USB_DEVICE(0x06bd, 0x0001), .driver_info = USB_QUIRK_RESET_RESUME },
+
        /* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
        { USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff --git a/drivers/usb/gadget/function/f_rndis.c 
b/drivers/usb/gadget/function/f_rndis.c
index e281af92e084..8482a8a37dde 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -91,8 +91,10 @@ static inline struct f_rndis *func_to_rndis(struct 
usb_function *f)
 /* peak (theoretical) bulk transfer rate in bits-per-second */
 static unsigned int bitrate(struct usb_gadget *g)
 {
+       if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS)
+               return 4250000000U;
        if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
-               return 13 * 1024 * 8 * 1000 * 8;
+               return 3750000000U;
        else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
                return 13 * 512 * 8 * 1000 * 8;
        else
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c 
b/drivers/usb/gadget/udc/dummy_hcd.c
index 0321b9ce9faf..cbd4ef2c74b8 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -2741,7 +2741,7 @@ static int __init init(void)
 {
        int     retval = -ENOMEM;
        int     i;
-       struct  dummy *dum[MAX_NUM_UDC];
+       struct  dummy *dum[MAX_NUM_UDC] = {};
 
        if (usb_disabled())
                return -ENODEV;
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index cccde8217f28..8e0625cc1801 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -237,6 +237,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 
 err_pm_runtime:
        pm_runtime_put_sync(dev);
+       pm_runtime_disable(dev);
 
 err_phy:
        for (i = 0; i < omap->nports; i++) {
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index 1f139d82cee0..d1e0d9d4e7a6 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -3741,8 +3741,10 @@ static struct usb_hcd *oxu_create(struct platform_device 
*pdev,
        oxu->is_otg = otg;
 
        ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
-       if (ret < 0)
+       if (ret < 0) {
+               usb_put_hcd(hcd);
                return ERR_PTR(ret);
+       }
 
        device_wakeup_enable(hcd->self.controller);
        return hcd;
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 6891738278bc..74d5975bf98f 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1400,6 +1400,10 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
        hcd->state = HC_STATE_SUSPENDED;
        bus_state->next_statechange = jiffies + msecs_to_jiffies(10);
        spin_unlock_irqrestore(&xhci->lock, flags);
+
+       if (bus_state->bus_suspended)
+               usleep_range(5000, 10000);
+
        return 0;
 }
 
diff --git a/drivers/usb/misc/sisusbvga/Kconfig 
b/drivers/usb/misc/sisusbvga/Kconfig
index 36bc28c884ad..47dabccafef4 100644
--- a/drivers/usb/misc/sisusbvga/Kconfig
+++ b/drivers/usb/misc/sisusbvga/Kconfig
@@ -15,7 +15,7 @@ config USB_SISUSBVGA
 
 config USB_SISUSBVGA_CON
        bool "Text console and mode switching support" if USB_SISUSBVGA
-       depends on VT
+       depends on VT && BROKEN
        select FONT_8x16
        ---help---
          Say Y here if you want a VGA text console via the USB dongle or
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 205f31200264..13c718ebaee5 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -252,6 +252,8 @@ static struct usb_serial_driver cp210x_device = {
        .close                  = cp210x_close,
        .break_ctl              = cp210x_break_ctl,
        .set_termios            = cp210x_set_termios,
+       .throttle               = usb_serial_generic_throttle,
+       .unthrottle             = usb_serial_generic_unthrottle,
        .tiocmget               = cp210x_tiocmget,
        .tiocmset               = cp210x_tiocmset,
        .attach                 = cp210x_startup,
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 8a4047de43dc..e25ea9069350 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -44,11 +44,12 @@
 #define DRIVER_AUTHOR "Brian Warner <war...@lothar.com>"
 #define DRIVER_DESC "USB Keyspan PDA Converter driver"
 
+#define KEYSPAN_TX_THRESHOLD   16
+
 struct keyspan_pda_private {
        int                     tx_room;
        int                     tx_throttled;
-       struct work_struct                      wakeup_work;
-       struct work_struct                      unthrottle_work;
+       struct work_struct      unthrottle_work;
        struct usb_serial       *serial;
        struct usb_serial_port  *port;
 };
@@ -101,15 +102,6 @@ static const struct usb_device_id id_table_fake_xircom[] = 
{
 };
 #endif
 
-static void keyspan_pda_wakeup_write(struct work_struct *work)
-{
-       struct keyspan_pda_private *priv =
-               container_of(work, struct keyspan_pda_private, wakeup_work);
-       struct usb_serial_port *port = priv->port;
-
-       tty_port_tty_wakeup(&port->port);
-}
-
 static void keyspan_pda_request_unthrottle(struct work_struct *work)
 {
        struct keyspan_pda_private *priv =
@@ -124,7 +116,7 @@ static void keyspan_pda_request_unthrottle(struct 
work_struct *work)
                                 7, /* request_unthrottle */
                                 USB_TYPE_VENDOR | USB_RECIP_INTERFACE
                                 | USB_DIR_OUT,
-                                16, /* value: threshold */
+                                KEYSPAN_TX_THRESHOLD,
                                 0, /* index */
                                 NULL,
                                 0,
@@ -143,6 +135,8 @@ static void keyspan_pda_rx_interrupt(struct urb *urb)
        int retval;
        int status = urb->status;
        struct keyspan_pda_private *priv;
+       unsigned long flags;
+
        priv = usb_get_serial_port_data(port);
 
        switch (status) {
@@ -176,18 +170,21 @@ static void keyspan_pda_rx_interrupt(struct urb *urb)
                break;
        case 1:
                /* status interrupt */
-               if (len < 3) {
+               if (len < 2) {
                        dev_warn(&port->dev, "short interrupt message 
received\n");
                        break;
                }
-               dev_dbg(&port->dev, "rx int, d1=%d, d2=%d\n", data[1], data[2]);
+               dev_dbg(&port->dev, "rx int, d1=%d\n", data[1]);
                switch (data[1]) {
                case 1: /* modemline change */
                        break;
                case 2: /* tx unthrottle interrupt */
+                       spin_lock_irqsave(&port->lock, flags);
                        priv->tx_throttled = 0;
+                       priv->tx_room = max(priv->tx_room, 
KEYSPAN_TX_THRESHOLD);
+                       spin_unlock_irqrestore(&port->lock, flags);
                        /* queue up a wakeup at scheduler time */
-                       schedule_work(&priv->wakeup_work);
+                       usb_serial_port_softint(port);
                        break;
                default:
                        break;
@@ -447,6 +444,7 @@ static int keyspan_pda_write(struct tty_struct *tty,
        int request_unthrottle = 0;
        int rc = 0;
        struct keyspan_pda_private *priv;
+       unsigned long flags;
 
        priv = usb_get_serial_port_data(port);
        /* guess how much room is left in the device's ring buffer, and if we
@@ -466,13 +464,13 @@ static int keyspan_pda_write(struct tty_struct *tty,
           the TX urb is in-flight (wait until it completes)
           the device is full (wait until it says there is room)
        */
-       spin_lock_bh(&port->lock);
+       spin_lock_irqsave(&port->lock, flags);
        if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled) {
-               spin_unlock_bh(&port->lock);
+               spin_unlock_irqrestore(&port->lock, flags);
                return 0;
        }
        clear_bit(0, &port->write_urbs_free);
-       spin_unlock_bh(&port->lock);
+       spin_unlock_irqrestore(&port->lock, flags);
 
        /* At this point the URB is in our control, nobody else can submit it
           again (the only sudden transition was the one from EINPROGRESS to
@@ -518,7 +516,8 @@ static int keyspan_pda_write(struct tty_struct *tty,
                        goto exit;
                }
        }
-       if (count > priv->tx_room) {
+
+       if (count >= priv->tx_room) {
                /* we're about to completely fill the Tx buffer, so
                   we'll be throttled afterwards. */
                count = priv->tx_room;
@@ -551,7 +550,7 @@ static int keyspan_pda_write(struct tty_struct *tty,
 
        rc = count;
 exit:
-       if (rc < 0)
+       if (rc <= 0)
                set_bit(0, &port->write_urbs_free);
        return rc;
 }
@@ -566,21 +565,24 @@ static void keyspan_pda_write_bulk_callback(struct urb 
*urb)
        priv = usb_get_serial_port_data(port);
 
        /* queue up a wakeup at scheduler time */
-       schedule_work(&priv->wakeup_work);
+       usb_serial_port_softint(port);
 }
 
 
 static int keyspan_pda_write_room(struct tty_struct *tty)
 {
        struct usb_serial_port *port = tty->driver_data;
-       struct keyspan_pda_private *priv;
-       priv = usb_get_serial_port_data(port);
-       /* used by n_tty.c for processing of tabs and such. Giving it our
-          conservative guess is probably good enough, but needs testing by
-          running a console through the device. */
-       return priv->tx_room;
-}
+       struct keyspan_pda_private *priv = usb_get_serial_port_data(port);
+       unsigned long flags;
+       int room = 0;
 
+       spin_lock_irqsave(&port->lock, flags);
+       if (test_bit(0, &port->write_urbs_free) && !priv->tx_throttled)
+               room = priv->tx_room;
+       spin_unlock_irqrestore(&port->lock, flags);
+
+       return room;
+}
 
 static int keyspan_pda_chars_in_buffer(struct tty_struct *tty)
 {
@@ -660,8 +662,12 @@ error:
 }
 static void keyspan_pda_close(struct usb_serial_port *port)
 {
+       struct keyspan_pda_private *priv = usb_get_serial_port_data(port);
+
        usb_kill_urb(port->write_urb);
        usb_kill_urb(port->interrupt_in_urb);
+
+       cancel_work_sync(&priv->unthrottle_work);
 }
 
 
@@ -732,7 +738,6 @@ static int keyspan_pda_port_probe(struct usb_serial_port 
*port)
        if (!priv)
                return -ENOMEM;
 
-       INIT_WORK(&priv->wakeup_work, keyspan_pda_wakeup_write);
        INIT_WORK(&priv->unthrottle_work, keyspan_pda_request_unthrottle);
        priv->serial = port->serial;
        priv->port = port;
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 1927f41ccafc..1d8a6c17c9eb 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -640,6 +640,8 @@ static void parport_mos7715_restore_state(struct parport 
*pp,
                spin_unlock(&release_lock);
                return;
        }
+       mos_parport->shadowDCR = s->u.pc.ctr;
+       mos_parport->shadowECR = s->u.pc.ecr;
        write_parport_reg_nonblock(mos_parport, MOS7720_DCR,
                                   mos_parport->shadowDCR);
        write_parport_reg_nonblock(mos_parport, MOS7720_ECR,
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index e8643612e9a3..6045a8e24068 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -563,6 +563,9 @@ static void option_instat_callback(struct urb *urb);
 
 /* Device flags */
 
+/* Highest interface number which can be used with NCTRL() and RSVD() */
+#define FLAG_IFNUM_MAX 7
+
 /* Interface does not support modem-control requests */
 #define NCTRL(ifnum)   ((BIT(ifnum) & 0xff) << 8)
 
@@ -2086,6 +2089,14 @@ static struct usb_serial_driver * const serial_drivers[] 
= {
 
 module_usb_serial_driver(serial_drivers, option_ids);
 
+static bool iface_is_reserved(unsigned long device_flags, u8 ifnum)
+{
+       if (ifnum > FLAG_IFNUM_MAX)
+               return false;
+
+       return device_flags & RSVD(ifnum);
+}
+
 static int option_probe(struct usb_serial *serial,
                        const struct usb_device_id *id)
 {
@@ -2103,7 +2114,7 @@ static int option_probe(struct usb_serial *serial,
         * the same class/subclass/protocol as the serial interfaces.  Look at
         * the Windows driver .INF files for reserved interface numbers.
         */
-       if (device_flags & RSVD(iface_desc->bInterfaceNumber))
+       if (iface_is_reserved(device_flags, iface_desc->bInterfaceNumber))
                return -ENODEV;
        /*
         * Don't bind network interface on Samsung GT-B3730, it is handled by
@@ -2120,6 +2131,14 @@ static int option_probe(struct usb_serial *serial,
        return 0;
 }
 
+static bool iface_no_modem_control(unsigned long device_flags, u8 ifnum)
+{
+       if (ifnum > FLAG_IFNUM_MAX)
+               return false;
+
+       return device_flags & NCTRL(ifnum);
+}
+
 static int option_attach(struct usb_serial *serial)
 {
        struct usb_interface_descriptor *iface_desc;
@@ -2135,7 +2154,7 @@ static int option_attach(struct usb_serial *serial)
 
        iface_desc = &serial->interface->cur_altsetting->desc;
 
-       if (!(device_flags & NCTRL(iface_desc->bInterfaceNumber)))
+       if (!iface_no_modem_control(device_flags, iface_desc->bInterfaceNumber))
                data->use_send_setup = 1;
 
        if (device_flags & ZLP)
diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index 48196347f2f9..12497a2140c2 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -691,7 +691,7 @@ static int xen_pcibk_xenbus_probe(struct xenbus_device *dev,
 
        /* watch the backend node for backend configuration information */
        err = xenbus_watch_path(dev, dev->nodename, &pdev->be_watch,
-                               xen_pcibk_be_watch);
+                               NULL, xen_pcibk_be_watch);
        if (err)
                goto out;
 
diff --git a/drivers/xen/xenbus/xenbus_client.c 
b/drivers/xen/xenbus/xenbus_client.c
index 266f446ba331..8bbd887ca422 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -114,18 +114,22 @@ EXPORT_SYMBOL_GPL(xenbus_strstate);
  */
 int xenbus_watch_path(struct xenbus_device *dev, const char *path,
                      struct xenbus_watch *watch,
+                     bool (*will_handle)(struct xenbus_watch *,
+                                         const char **, unsigned int),
                      void (*callback)(struct xenbus_watch *,
                                       const char **, unsigned int))
 {
        int err;
 
        watch->node = path;
+       watch->will_handle = will_handle;
        watch->callback = callback;
 
        err = register_xenbus_watch(watch);
 
        if (err) {
                watch->node = NULL;
+               watch->will_handle = NULL;
                watch->callback = NULL;
                xenbus_dev_fatal(dev, err, "adding watch on %s", path);
        }
@@ -152,6 +156,8 @@ EXPORT_SYMBOL_GPL(xenbus_watch_path);
  */
 int xenbus_watch_pathfmt(struct xenbus_device *dev,
                         struct xenbus_watch *watch,
+                        bool (*will_handle)(struct xenbus_watch *,
+                                            const char **, unsigned int),
                         void (*callback)(struct xenbus_watch *,
                                        const char **, unsigned int),
                         const char *pathfmt, ...)
@@ -168,7 +174,7 @@ int xenbus_watch_pathfmt(struct xenbus_device *dev,
                xenbus_dev_fatal(dev, -ENOMEM, "allocating path for watch");
                return -ENOMEM;
        }
-       err = xenbus_watch_path(dev, path, watch, callback);
+       err = xenbus_watch_path(dev, path, watch, will_handle, callback);
 
        if (err)
                kfree(path);
diff --git a/drivers/xen/xenbus/xenbus_probe.c 
b/drivers/xen/xenbus/xenbus_probe.c
index c2d447687e33..ba7590d75985 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -137,6 +137,7 @@ static int watch_otherend(struct xenbus_device *dev)
                container_of(dev->dev.bus, struct xen_bus_type, bus);
 
        return xenbus_watch_pathfmt(dev, &dev->otherend_watch,
+                                   bus->otherend_will_handle,
                                    bus->otherend_changed,
                                    "%s/%s", dev->otherend, "state");
 }
diff --git a/drivers/xen/xenbus/xenbus_probe.h 
b/drivers/xen/xenbus/xenbus_probe.h
index c9ec7ca1f7ab..2c394c6ba605 100644
--- a/drivers/xen/xenbus/xenbus_probe.h
+++ b/drivers/xen/xenbus/xenbus_probe.h
@@ -42,6 +42,8 @@ struct xen_bus_type {
        int (*get_bus_id)(char bus_id[XEN_BUS_ID_SIZE], const char *nodename);
        int (*probe)(struct xen_bus_type *bus, const char *type,
                     const char *dir);
+       bool (*otherend_will_handle)(struct xenbus_watch *watch,
+                                    const char **vec, unsigned int len);
        void (*otherend_changed)(struct xenbus_watch *watch, const char **vec,
                                 unsigned int len);
        struct bus_type bus;
diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c 
b/drivers/xen/xenbus/xenbus_probe_backend.c
index 04f7f85a5edf..597c0b038454 100644
--- a/drivers/xen/xenbus/xenbus_probe_backend.c
+++ b/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -181,6 +181,12 @@ static int xenbus_probe_backend(struct xen_bus_type *bus, 
const char *type,
        return err;
 }
 
+static bool frontend_will_handle(struct xenbus_watch *watch,
+                                const char **vec, unsigned int len)
+{
+       return watch->nr_pending == 0;
+}
+
 static void frontend_changed(struct xenbus_watch *watch,
                            const char **vec, unsigned int len)
 {
@@ -192,6 +198,7 @@ static struct xen_bus_type xenbus_backend = {
        .levels = 3,            /* backend/type/<frontend>/<id> */
        .get_bus_id = backend_bus_id,
        .probe = xenbus_probe_backend,
+       .otherend_will_handle = frontend_will_handle,
        .otherend_changed = frontend_changed,
        .bus = {
                .name           = "xen-backend",
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index ce65591b4168..d98d88fae58a 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -701,6 +701,8 @@ int register_xenbus_watch(struct xenbus_watch *watch)
 
        sprintf(token, "%lX", (long)watch);
 
+       watch->nr_pending = 0;
+
        down_read(&xs_state.watch_mutex);
 
        spin_lock(&watches_lock);
@@ -750,12 +752,15 @@ void unregister_xenbus_watch(struct xenbus_watch *watch)
 
        /* Cancel pending watch events. */
        spin_lock(&watch_events_lock);
-       list_for_each_entry_safe(msg, tmp, &watch_events, list) {
-               if (msg->u.watch.handle != watch)
-                       continue;
-               list_del(&msg->list);
-               kfree(msg->u.watch.vec);
-               kfree(msg);
+       if (watch->nr_pending) {
+               list_for_each_entry_safe(msg, tmp, &watch_events, list) {
+                       if (msg->u.watch.handle != watch)
+                               continue;
+                       list_del(&msg->list);
+                       kfree(msg->u.watch.vec);
+                       kfree(msg);
+               }
+               watch->nr_pending = 0;
        }
        spin_unlock(&watch_events_lock);
 
@@ -802,7 +807,6 @@ void xs_suspend_cancel(void)
 
 static int xenwatch_thread(void *unused)
 {
-       struct list_head *ent;
        struct xs_stored_msg *msg;
 
        for (;;) {
@@ -815,13 +819,15 @@ static int xenwatch_thread(void *unused)
                mutex_lock(&xenwatch_mutex);
 
                spin_lock(&watch_events_lock);
-               ent = watch_events.next;
-               if (ent != &watch_events)
-                       list_del(ent);
+               msg = list_first_entry_or_null(&watch_events,
+                               struct xs_stored_msg, list);
+               if (msg) {
+                       list_del(&msg->list);
+                       msg->u.watch.handle->nr_pending--;
+               }
                spin_unlock(&watch_events_lock);
 
-               if (ent != &watch_events) {
-                       msg = list_entry(ent, struct xs_stored_msg, list);
+               if (msg) {
                        msg->u.watch.handle->callback(
                                msg->u.watch.handle,
                                (const char **)msg->u.watch.vec,
@@ -903,9 +909,15 @@ static int process_msg(void)
                spin_lock(&watches_lock);
                msg->u.watch.handle = find_watch(
                        msg->u.watch.vec[XS_WATCH_TOKEN]);
-               if (msg->u.watch.handle != NULL) {
+               if (msg->u.watch.handle != NULL &&
+                               (!msg->u.watch.handle->will_handle ||
+                                msg->u.watch.handle->will_handle(
+                                        msg->u.watch.handle,
+                                        (const char **)msg->u.watch.vec,
+                                        msg->u.watch.vec_size))) {
                        spin_lock(&watch_events_lock);
                        list_add_tail(&msg->list, &watch_events);
+                       msg->u.watch.handle->nr_pending++;
                        wake_up(&watch_events_waitq);
                        spin_unlock(&watch_events_lock);
                } else {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9e1f9910bdf2..6d846ff696fb 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6923,7 +6923,7 @@ again:
            found_type == BTRFS_FILE_EXTENT_PREALLOC) {
                /* Only regular file could have regular/prealloc extent */
                if (!S_ISREG(inode->i_mode)) {
-                       ret = -EUCLEAN;
+                       err = -EUCLEAN;
                        btrfs_crit(root->fs_info,
                "regular/prealloc extent found for non-regular inode %llu",
                                   btrfs_ino(inode));
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 18e667fbd054..bc4cc417e7ab 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2288,8 +2288,10 @@ out:
        }
        btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);
 
-       if (done && !ret)
+       if (done && !ret) {
                ret = 1;
+               fs_info->qgroup_rescan_progress.objectid = (u64)-1;
+       }
        return ret;
 }
 
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index cc9ccc42f469..0b41a88ef9e9 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -918,11 +918,6 @@ static int scrub_handle_errored_block(struct scrub_block 
*sblock_to_check)
        have_csum = sblock_to_check->pagev[0]->have_csum;
        dev = sblock_to_check->pagev[0]->dev;
 
-       if (sctx->is_dev_replace && !is_metadata && !have_csum) {
-               sblocks_for_recheck = NULL;
-               goto nodatasum_case;
-       }
-
        /*
         * read all mirrors one after the other. This includes to
         * re-read the extent or metadata block that failed (that was
@@ -1035,13 +1030,19 @@ static int scrub_handle_errored_block(struct 
scrub_block *sblock_to_check)
                goto out;
        }
 
-       if (!is_metadata && !have_csum) {
+       /*
+        * NOTE: Even for nodatasum case, it's still possible that it's a
+        * compressed data extent, thus scrub_fixup_nodatasum(), which write
+        * inode page cache onto disk, could cause serious data corruption.
+        *
+        * So here we could only read from disk, and hope our recovery could
+        * reach disk before the newer write.
+        */
+       if (0 && !is_metadata && !have_csum) {
                struct scrub_fixup_nodatasum *fixup_nodatasum;
 
                WARN_ON(sctx->is_dev_replace);
 
-nodatasum_case:
-
                /*
                 * !is_metadata and !have_csum, this means that the data
                 * might not be COW'ed, that it might be modified
diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index 69255148f0c8..2825cbe3ea8d 100644
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -48,7 +48,13 @@ static struct file_system_type test_type = {
 
 struct inode *btrfs_new_test_inode(void)
 {
-       return new_inode(test_mnt->mnt_sb);
+       struct inode *inode;
+
+       inode = new_inode(test_mnt->mnt_sb);
+       if (inode)
+               inode_init_owner(inode, NULL, S_IFREG);
+
+       return inode;
 }
 
 int btrfs_init_test_fs(void)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 49e693232916..9d74cd37b395 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -920,12 +920,19 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool 
queue_release)
 {
        struct ceph_mds_session *session = cap->session;
        struct ceph_inode_info *ci = cap->ci;
-       struct ceph_mds_client *mdsc =
-               ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc;
+       struct ceph_mds_client *mdsc;
        int removed = 0;
 
+       /* 'ci' being NULL means the remove have already occurred */
+       if (!ci) {
+               dout("%s: cap inode is NULL\n", __func__);
+               return;
+       }
+
        dout("__ceph_remove_cap %p from %p\n", cap, &ci->vfs_inode);
 
+       mdsc = ceph_inode_to_client(&ci->vfs_inode)->mdsc;
+
        /* remove from inode's cap rbtree, and clear auth cap */
        rb_erase(&cap->ci_node, &ci->i_caps);
        if (ci->i_auth_cap == cap)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 04fab14e630c..812e0ba25a08 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4646,6 +4646,7 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy 
*e4b,
                                ext4_group_first_block_no(sb, group) +
                                EXT4_C2B(sbi, cluster),
                                "Block already on to-be-freed list");
+                       kmem_cache_free(ext4_free_data_cachep, new_entry);
                        return 0;
                }
        }
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 5b52ea41b84f..bee8964682f8 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -672,6 +672,22 @@ static inline int read_direntry(struct jffs2_sb_info *c, 
struct jffs2_raw_node_r
                        jffs2_free_full_dirent(fd);
                        return -EIO;
                }
+
+#ifdef CONFIG_JFFS2_SUMMARY
+               /*
+                * we use CONFIG_JFFS2_SUMMARY because without it, we
+                * have checked it while mounting
+                */
+               crc = crc32(0, fd->name, rd->nsize);
+               if (unlikely(crc != je32_to_cpu(rd->name_crc))) {
+                       JFFS2_NOTICE("name CRC failed on dirent node at"
+                          "%#08x: read %#08x,calculated %#08x\n",
+                          ref_offset(ref), je32_to_cpu(rd->node_crc), crc);
+                       jffs2_mark_node_obsolete(c, ref);
+                       jffs2_free_full_dirent(fd);
+                       return 0;
+               }
+#endif
        }
 
        fd->nhash = full_name_hash(fd->name, rd->nsize);
diff --git a/fs/jfs/jfs_dmap.h b/fs/jfs/jfs_dmap.h
index 562b9a7e4311..f502a15c6c98 100644
--- a/fs/jfs/jfs_dmap.h
+++ b/fs/jfs/jfs_dmap.h
@@ -196,7 +196,7 @@ typedef union dmtree {
 #define        dmt_leafidx     t1.leafidx
 #define        dmt_height      t1.height
 #define        dmt_budmin      t1.budmin
-#define        dmt_stree       t1.stree
+#define        dmt_stree       t2.stree
 
 /*
  *     on-disk aggregate disk allocation map descriptor.
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index c7eb47f2fb6c..603fa652b965 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -430,12 +430,7 @@ nlm_bind_host(struct nlm_host *host)
         * RPC rebind is required
         */
        if ((clnt = host->h_rpcclnt) != NULL) {
-               if (time_after_eq(jiffies, host->h_nextrebind)) {
-                       rpc_force_rebind(clnt);
-                       host->h_nextrebind = jiffies + NLM_HOST_REBIND;
-                       dprintk("lockd: next rebind in %lu jiffies\n",
-                                       host->h_nextrebind - jiffies);
-               }
+               nlm_rebind_host(host);
        } else {
                unsigned long increment = nlmsvc_timeout;
                struct rpc_timeout timeparms = {
@@ -483,13 +478,20 @@ nlm_bind_host(struct nlm_host *host)
        return clnt;
 }
 
-/*
- * Force a portmap lookup of the remote lockd port
+/**
+ * nlm_rebind_host - If needed, force a portmap lookup of the peer's lockd port
+ * @host: NLM host handle for peer
+ *
+ * This is not needed when using a connection-oriented protocol, such as TCP.
+ * The existing autobind mechanism is sufficient to force a rebind when
+ * required, e.g. on connection state transitions.
  */
 void
 nlm_rebind_host(struct nlm_host *host)
 {
-       dprintk("lockd: rebind host %s\n", host->h_name);
+       if (host->h_proto != IPPROTO_UDP)
+               return;
+
        if (host->h_rpcclnt && time_after_eq(jiffies, host->h_nextrebind)) {
                rpc_force_rebind(host->h_rpcclnt);
                host->h_nextrebind = jiffies + NLM_HOST_REBIND;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index d25b55ceb9d5..b15236641191 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1964,7 +1964,7 @@ static int nfsiod_start(void)
 {
        struct workqueue_struct *wq;
        dprintk("RPC:       creating workqueue nfsiod\n");
-       wq = alloc_workqueue("nfsiod", WQ_MEM_RECLAIM, 0);
+       wq = alloc_workqueue("nfsiod", WQ_MEM_RECLAIM | WQ_UNBOUND, 0);
        if (wq == NULL)
                return -ENOMEM;
        nfsiod_workqueue = wq;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 64d15c2662db..3c15291ba1aa 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4047,12 +4047,12 @@ static int _nfs4_proc_readdir(struct dentry *dentry, 
struct rpc_cred *cred,
                u64 cookie, struct page **pages, unsigned int count, int plus)
 {
        struct inode            *dir = d_inode(dentry);
+       struct nfs_server       *server = NFS_SERVER(dir);
        struct nfs4_readdir_arg args = {
                .fh = NFS_FH(dir),
                .pages = pages,
                .pgbase = 0,
                .count = count,
-               .bitmask = NFS_SERVER(d_inode(dentry))->attr_bitmask,
                .plus = plus,
        };
        struct nfs4_readdir_res res;
@@ -4067,9 +4067,15 @@ static int _nfs4_proc_readdir(struct dentry *dentry, 
struct rpc_cred *cred,
        dprintk("%s: dentry = %pd2, cookie = %Lu\n", __func__,
                        dentry,
                        (unsigned long long)cookie);
+       if (!(server->caps & NFS_CAP_SECURITY_LABEL))
+               args.bitmask = server->attr_bitmask_nl;
+       else
+               args.bitmask = server->attr_bitmask;
+
        nfs4_setup_readdir(cookie, NFS_I(dir)->cookieverf, dentry, &args);
        res.pgbase = args.pgbase;
-       status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, 
&args.seq_args, &res.seq_res, 0);
+       status = nfs4_call_sync(server->client, server, &msg, &args.seq_args,
+                       &res.seq_res, 0);
        if (status >= 0) {
                memcpy(NFS_I(dir)->cookieverf, res.verifier.data, 
NFS4_VERIFIER_SIZE);
                status += args.pgbase;
diff --git a/fs/nfs_common/grace.c b/fs/nfs_common/grace.c
index 77d136ac8909..c21fca0dcba7 100644
--- a/fs/nfs_common/grace.c
+++ b/fs/nfs_common/grace.c
@@ -75,10 +75,14 @@ __state_in_grace(struct net *net, bool open)
        if (!open)
                return !list_empty(grace_list);
 
+       spin_lock(&grace_lock);
        list_for_each_entry(lm, grace_list, list) {
-               if (lm->block_opens)
+               if (lm->block_opens) {
+                       spin_unlock(&grace_lock);
                        return true;
+               }
        }
+       spin_unlock(&grace_lock);
        return false;
 }
 
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index fb7eb9ccb1cd..d4c3c9bab582 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -29,7 +29,7 @@ static inline void seq_buf_clear(struct seq_buf *s)
 }
 
 static inline void
-seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
+seq_buf_init(struct seq_buf *s, char *buf, unsigned int size)
 {
        s->buffer = buf;
        s->size = size;
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index cfaf5a1d4bad..f5be2716b01c 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -11,7 +11,7 @@
  */
 
 struct trace_seq {
-       unsigned char           buffer[PAGE_SIZE];
+       char                    buffer[PAGE_SIZE];
        struct seq_buf          seq;
        int                     full;
 };
@@ -50,7 +50,7 @@ static inline int trace_seq_used(struct trace_seq *s)
  * that is about to be written to and then return the result
  * of that write.
  */
-static inline unsigned char *
+static inline char *
 trace_seq_buffer_ptr(struct trace_seq *s)
 {
        return s->buffer + seq_buf_used(&s->seq);
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h
index 32b944b7cebd..ed9e7e3307b7 100644
--- a/include/xen/xenbus.h
+++ b/include/xen/xenbus.h
@@ -58,6 +58,15 @@ struct xenbus_watch
        /* Path being watched. */
        const char *node;
 
+       unsigned int nr_pending;
+
+       /*
+        * Called just before enqueing new event while a spinlock is held.
+        * The event will be discarded if this callback returns false.
+        */
+       bool (*will_handle)(struct xenbus_watch *,
+                           const char **vec, unsigned int len);
+
        /* Callback (executed in a process context with no locks held). */
        void (*callback)(struct xenbus_watch *,
                         const char **vec, unsigned int len);
@@ -194,10 +203,14 @@ void xenbus_suspend_cancel(void);
 
 int xenbus_watch_path(struct xenbus_device *dev, const char *path,
                      struct xenbus_watch *watch,
+                     bool (*will_handle)(struct xenbus_watch *,
+                                         const char **, unsigned int),
                      void (*callback)(struct xenbus_watch *,
                                       const char **, unsigned int));
-__printf(4, 5)
+__printf(5, 6)
 int xenbus_watch_pathfmt(struct xenbus_device *dev, struct xenbus_watch *watch,
+                        bool (*will_handle)(struct xenbus_watch *,
+                                            const char **, unsigned int),
                         void (*callback)(struct xenbus_watch *,
                                          const char **, unsigned int),
                         const char *pathfmt, ...);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7cee89fddcd5..586c005bdc1e 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4336,6 +4336,11 @@ static void hci_phy_link_complete_evt(struct hci_dev 
*hdev,
                return;
        }
 
+       if (!hcon->amp_mgr) {
+               hci_dev_unlock(hdev);
+               return;
+       }
+
        if (ev->status) {
                hci_conn_del(hcon);
                hci_dev_unlock(hdev);
@@ -5114,20 +5119,18 @@ static void hci_le_direct_adv_report_evt(struct hci_dev 
*hdev,
                                         struct sk_buff *skb)
 {
        u8 num_reports = skb->data[0];
-       void *ptr = &skb->data[1];
+       struct hci_ev_le_direct_adv_info *ev = (void *)&skb->data[1];
 
-       hci_dev_lock(hdev);
+       if (!num_reports || skb->len < num_reports * sizeof(*ev) + 1)
+               return;
 
-       while (num_reports--) {
-               struct hci_ev_le_direct_adv_info *ev = ptr;
+       hci_dev_lock(hdev);
 
+       for (; num_reports; num_reports--, ev++)
                process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
                                   ev->bdaddr_type, &ev->direct_addr,
                                   ev->direct_addr_type, ev->rssi, NULL, 0);
 
-               ptr += sizeof(*ev);
-       }
-
        hci_dev_unlock(hdev);
 }
 
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index a7953962112a..1b848a45047b 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -225,8 +225,10 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags)
                }
 
                masterv = br_vlan_get_master(br, v->vid);
-               if (!masterv)
+               if (!masterv) {
+                       err = -ENOMEM;
                        goto out_filt;
+               }
                v->brvlan = masterv;
        }
 
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b218138874cc..db037082e6f2 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1501,7 +1501,8 @@ static void tcp_cwnd_validate(struct sock *sk, bool 
is_cwnd_limited)
         * window, and remember whether we were cwnd-limited then.
         */
        if (!before(tp->snd_una, tp->max_packets_seq) ||
-           tp->packets_out > tp->max_packets_out) {
+           tp->packets_out > tp->max_packets_out ||
+           is_cwnd_limited) {
                tp->max_packets_out = tp->packets_out;
                tp->max_packets_seq = tp->snd_nxt;
                tp->is_cwnd_limited = is_cwnd_limited;
@@ -2172,6 +2173,10 @@ repair:
                        break;
        }
 
+       is_cwnd_limited |= (tcp_packets_in_flight(tp) >= tp->snd_cwnd);
+       if (likely(sent_pkts || is_cwnd_limited))
+               tcp_cwnd_validate(sk, is_cwnd_limited);
+
        if (likely(sent_pkts)) {
                if (tcp_in_cwnd_reduction(sk))
                        tp->prr_out += sent_pkts;
@@ -2179,8 +2184,6 @@ repair:
                /* Send one loss probe per tail loss episode. */
                if (push_one != 2)
                        tcp_schedule_loss_probe(sk);
-               is_cwnd_limited |= (tcp_packets_in_flight(tp) >= tp->snd_cwnd);
-               tcp_cwnd_validate(sk, is_cwnd_limited);
                return false;
        }
        return !tp->packets_out && tcp_send_head(sk);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7748d674677c..eb25998a0032 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -9836,7 +9836,7 @@ static int nl80211_set_rekey_data(struct sk_buff *skb, 
struct genl_info *info)
        struct net_device *dev = info->user_ptr[1];
        struct wireless_dev *wdev = dev->ieee80211_ptr;
        struct nlattr *tb[NUM_NL80211_REKEY_DATA];
-       struct cfg80211_gtk_rekey_data rekey_data;
+       struct cfg80211_gtk_rekey_data rekey_data = {};
        int err;
 
        if (!info->attrs[NL80211_ATTR_REKEY_DATA])
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 8835a4775d20..67a6a8a9b672 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3580,7 +3580,7 @@ sub process {
                            $fix) {
                                fix_delete_line($fixlinenr, $rawline);
                                my $fixed_line = $rawline;
-                               $fixed_line =~ 
/(^..*$Type\s*$Ident\(.*\)\s*){(.*)$/;
+                               $fixed_line =~ 
/(^..*$Type\s*$Ident\(.*\)\s*)\{(.*)$/;
                                my $line1 = $1;
                                my $line2 = $2;
                                fix_insert_line($fixlinenr, ltrim($line1));
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 443bb8ce8255..1d1faf192517 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -718,6 +718,8 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream 
*substream,
 
        oss_buffer_size = snd_pcm_plug_client_size(substream,
                                                   
snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL)) 
* oss_frame_size;
+       if (!oss_buffer_size)
+               return -EINVAL;
        oss_buffer_size = rounddown_pow_of_two(oss_buffer_size);
        if (atomic_read(&substream->mmap_count)) {
                if (oss_buffer_size > runtime->oss.mmap_bytes)
@@ -753,17 +755,21 @@ static int snd_pcm_oss_period_size(struct 
snd_pcm_substream *substream,
 
        min_period_size = snd_pcm_plug_client_size(substream,
                                                   
snd_pcm_hw_param_value_min(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL));
-       min_period_size *= oss_frame_size;
-       min_period_size = roundup_pow_of_two(min_period_size);
-       if (oss_period_size < min_period_size)
-               oss_period_size = min_period_size;
+       if (min_period_size) {
+               min_period_size *= oss_frame_size;
+               min_period_size = roundup_pow_of_two(min_period_size);
+               if (oss_period_size < min_period_size)
+                       oss_period_size = min_period_size;
+       }
 
        max_period_size = snd_pcm_plug_client_size(substream,
                                                   
snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL));
-       max_period_size *= oss_frame_size;
-       max_period_size = rounddown_pow_of_two(max_period_size);
-       if (oss_period_size > max_period_size)
-               oss_period_size = max_period_size;
+       if (max_period_size) {
+               max_period_size *= oss_frame_size;
+               max_period_size = rounddown_pow_of_two(max_period_size);
+               if (oss_period_size > max_period_size)
+                       oss_period_size = max_period_size;
+       }
 
        oss_periods = oss_buffer_size / oss_period_size;
 
@@ -2000,11 +2006,15 @@ static int snd_pcm_oss_set_subdivide(struct 
snd_pcm_oss_file *pcm_oss_file, int
 static int snd_pcm_oss_set_fragment1(struct snd_pcm_substream *substream, 
unsigned int val)
 {
        struct snd_pcm_runtime *runtime;
+       int fragshift;
 
        runtime = substream->runtime;
        if (runtime->oss.subdivision || runtime->oss.fragshift)
                return -EINVAL;
-       runtime->oss.fragshift = val & 0xffff;
+       fragshift = val & 0xffff;
+       if (fragshift >= 31)
+               return -EINVAL;
+       runtime->oss.fragshift = fragshift;
        runtime->oss.maxfrags = (val >> 16) & 0xffff;
        if (runtime->oss.fragshift < 4)         /* < 16 */
                runtime->oss.fragshift = 4;
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index f1f990b325ad..5ff0d3b10bcf 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -852,7 +852,7 @@ static int wm_adsp_create_control(struct wm_adsp *dsp,
        ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
        if (!ctl_work) {
                ret = -ENOMEM;
-               goto err_ctl_cache;
+               goto err_list_del;
        }
 
        ctl_work->dsp = dsp;
@@ -862,7 +862,8 @@ static int wm_adsp_create_control(struct wm_adsp *dsp,
 
        return 0;
 
-err_ctl_cache:
+err_list_del:
+       list_del(&ctl->list);
        kfree(ctl->cache);
 err_ctl_name:
        kfree(ctl->name);
diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
index 0dc1ab48fceb..6440729facaf 100644
--- a/sound/soc/jz4740/jz4740-i2s.c
+++ b/sound/soc/jz4740/jz4740-i2s.c
@@ -315,10 +315,14 @@ static int jz4740_i2s_set_sysclk(struct snd_soc_dai *dai, 
int clk_id,
        switch (clk_id) {
        case JZ4740_I2S_CLKSRC_EXT:
                parent = clk_get(NULL, "ext");
+               if (IS_ERR(parent))
+                       return PTR_ERR(parent);
                clk_set_parent(i2s->clk_i2s, parent);
                break;
        case JZ4740_I2S_CLKSRC_PLL:
                parent = clk_get(NULL, "pll half");
+               if (IS_ERR(parent))
+                       return PTR_ERR(parent);
                clk_set_parent(i2s->clk_i2s, parent);
                ret = clk_set_rate(i2s->clk_i2s, freq);
                break;
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d4bf3dc6b015..b773d61cd5bc 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2075,6 +2075,7 @@ static int dpcm_fe_dai_do_trigger(struct 
snd_pcm_substream *substream, int cmd)
                case SNDRV_PCM_TRIGGER_START:
                case SNDRV_PCM_TRIGGER_RESUME:
                case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+               case SNDRV_PCM_TRIGGER_DRAIN:
                        ret = dpcm_dai_trigger_fe_be(substream, cmd, true);
                        break;
                case SNDRV_PCM_TRIGGER_STOP:
@@ -2092,6 +2093,7 @@ static int dpcm_fe_dai_do_trigger(struct 
snd_pcm_substream *substream, int cmd)
                case SNDRV_PCM_TRIGGER_START:
                case SNDRV_PCM_TRIGGER_RESUME:
                case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+               case SNDRV_PCM_TRIGGER_DRAIN:
                        ret = dpcm_dai_trigger_fe_be(substream, cmd, false);
                        break;
                case SNDRV_PCM_TRIGGER_STOP:
diff --git a/sound/usb/format.c b/sound/usb/format.c
index f28a41194d17..ca75807eeb17 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -52,6 +52,8 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio 
*chip,
        case UAC_VERSION_1:
        default: {
                struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
+               if (format >= 64)
+                       return 0; /* invalid format */
                sample_width = fmt->bBitResolution;
                sample_bytes = fmt->bSubframeSize;
                format = 1 << format;
diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index 1ffc32fd3a9e..bc8e4702e9ed 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -187,16 +187,16 @@ static int usb_chmap_ctl_get(struct snd_kcontrol 
*kcontrol,
        struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
        struct snd_usb_substream *subs = info->private_data;
        struct snd_pcm_chmap_elem *chmap = NULL;
-       int i;
+       int i = 0;
 
-       memset(ucontrol->value.integer.value, 0,
-              sizeof(ucontrol->value.integer.value));
        if (subs->cur_audiofmt)
                chmap = subs->cur_audiofmt->chmap;
        if (chmap) {
                for (i = 0; i < chmap->channels; i++)
                        ucontrol->value.integer.value[i] = chmap->map[i];
        }
+       for (; i < subs->channels_max; i++)
+               ucontrol->value.integer.value[i] = 0;
        return 0;
 }
 
diff --git a/tools/perf/util/parse-regs-options.c 
b/tools/perf/util/parse-regs-options.c
index 4f2c1c255d81..a8865d1c3e81 100644
--- a/tools/perf/util/parse-regs-options.c
+++ b/tools/perf/util/parse-regs-options.c
@@ -40,7 +40,7 @@ parse_regs(const struct option *opt, const char *str, int 
unset)
                                }
                                fputc('\n', stderr);
                                /* just printing available regs */
-                               return -1;
+                               goto error;
                        }
                        for (r = sample_reg_masks; r->name; r++) {
                                if (!strcasecmp(s, r->name))
  • Linux 4.4.249 Greg Kroah-Hartman
    • Re: Linux 4.4.249 Greg Kroah-Hartman

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