From: Vasily Averin <v...@virtuozzo.com>

[ Upstream commit f4d74ef6220c1eda0875da30457bef5c7111ab06 ]

If seq_file .next function does not change position index, read after
some lseek can generate unexpected output.

https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <v...@virtuozzo.com>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Acked-by: Peter Oberparleiter <ober...@linux.ibm.com>
Cc: Al Viro <v...@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <d...@stgolabs.net>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Manfred Spraul <manf...@colorfullife.com>
Cc: NeilBrown <ne...@suse.com>
Cc: Steven Rostedt <rost...@goodmis.org>
Cc: Waiman Long <long...@redhat.com>
Link: 
http://lkml.kernel.org/r/f65c6ee7-bd00-f910-2f8a-37cc67e4f...@virtuozzo.com
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 kernel/gcov/fs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index 6e40ff6be083d..291e0797125b6 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -109,9 +109,9 @@ static void *gcov_seq_next(struct seq_file *seq, void 
*data, loff_t *pos)
 {
        struct gcov_iterator *iter = data;
 
+       (*pos)++;
        if (gcov_iter_next(iter))
                return NULL;
-       (*pos)++;
 
        return iter;
 }
-- 
2.20.1



 sizeof(kctl->id.name));
+
+       if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)))
+               strlcat(kctl->id.name, " Jack", sizeof(kctl->id.name));
+       else
+               get_connector_control_name(mixer, term, is_input, kctl->id.name,
+                                          sizeof(kctl->id.name));
        kctl->private_free = snd_usb_mixer_elem_free;
        snd_usb_mixer_add_control(&cval->head, kctl);
 }
diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index b4e77000f441e..fb2c4a992951b 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -369,6 +369,24 @@ static const struct usbmix_name_map asus_rog_map[] = {
        {}
 };
 
+/* TRX40 mobos with Realtek ALC1220-VB */
+static const struct usbmix_name_map trx40_mobo_map[] = {
+       { 18, NULL }, /* OT, IEC958 - broken response, disabled */
+       { 19, NULL, 12 }, /* FU, Input Gain Pad - broken response, disabled */
+       { 16, "Speaker" },              /* OT */
+       { 22, "Speaker Playback" },     /* FU */
+       { 7, "Line" },                  /* IT */
+       { 19, "Line Capture" },         /* FU */
+       { 17, "Front Headphone" },      /* OT */
+       { 23, "Front Headphone Playback" },     /* FU */
+       { 8, "Mic" },                   /* IT */
+       { 20, "Mic Capture" },          /* FU */
+       { 9, "Front Mic" },             /* IT */
+       { 21, "Front Mic Capture" },    /* FU */
+       { 24, "IEC958 Playback" },      /* FU */
+       {}
+};
+
 /*
  * Control map entries
  */
@@ -500,7 +518,7 @@ static const struct usbmix_ctl_map usbmix_ctl_maps[] = {
        },
        {       /* Gigabyte TRX40 Aorus Pro WiFi */
                .id = USB_ID(0x0414, 0xa002),
-               .map = asus_rog_map,
+               .map = trx40_mobo_map,
        },
        {       /* ASUS ROG Zenith II */
                .id = USB_ID(0x0b05, 0x1916),
@@ -512,11 +530,11 @@ static const struct usbmix_ctl_map usbmix_ctl_maps[] = {
        },
        {       /* MSI TRX40 Creator */
                .id = USB_ID(0x0db0, 0x0d64),
-               .map = asus_rog_map,
+               .map = trx40_mobo_map,
        },
        {       /* MSI TRX40 */
                .id = USB_ID(0x0db0, 0x543d),
-               .map = asus_rog_map,
+               .map = trx40_mobo_map,
        },
        { 0 } /* terminator */
 };
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index dcaf9eed9a415..8c2f5c23e1b43 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -3635,4 +3635,18 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
        }
 },
 
+#define ALC1220_VB_DESKTOP(vend, prod) { \
+       USB_DEVICE(vend, prod), \
+       .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { \
+               .vendor_name = "Realtek", \
+               .product_name = "ALC1220-VB-DT", \
+               .profile_name = "Realtek-ALC1220-VB-Desktop", \
+               .ifnum = QUIRK_NO_INTERFACE \
+       } \
+}
+ALC1220_VB_DESKTOP(0x0414, 0xa002), /* Gigabyte TRX40 Aorus Pro WiFi */
+ALC1220_VB_DESKTOP(0x0db0, 0x0d64), /* MSI TRX40 Creator */
+ALC1220_VB_DESKTOP(0x0db0, 0x543d), /* MSI TRX40 */
+#undef ALC1220_VB_DESKTOP
+
 #undef USB_DEVICE_VENDOR_SPEC
-- 
2.20.1



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