diff --git a/include/sound/control.h b/include/sound/control.h
index a1f1152bc687..ca13a44ae9d4 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -249,7 +249,9 @@ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl,
 void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only);
 #define snd_ctl_sync_vmaster_hook(kctl)	snd_ctl_sync_vmaster(kctl, true)
 int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
-				 int (*func)(struct snd_kcontrol *, void *),
+				 int (*func)(struct snd_kcontrol *vslave,
+					     struct snd_kcontrol *slave,
+					     void *arg),
 				 void *arg);
 
 /*
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index a93a4235a332..10e7ef7a8804 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -248,8 +248,10 @@ static void update_audio_tstamp(struct snd_pcm_substream *substream,
 				runtime->rate);
 		*audio_tstamp = ns_to_timespec(audio_nsecs);
 	}
-	runtime->status->audio_tstamp = *audio_tstamp;
-	runtime->status->tstamp = *curr_tstamp;
+	if (!timespec_equal(&runtime->status->audio_tstamp, audio_tstamp)) {
+		runtime->status->audio_tstamp = *audio_tstamp;
+		runtime->status->tstamp = *curr_tstamp;
+	}
 
 	/*
 	 * re-take a driver timestamp to let apps detect if the reference tstamp
diff --git a/sound/core/timer_compat.c b/sound/core/timer_compat.c
index 59127b6ef39e..e00f7e399e46 100644
--- a/sound/core/timer_compat.c
+++ b/sound/core/timer_compat.c
@@ -66,11 +66,11 @@ static int snd_timer_user_info_compat(struct file *file,
 	struct snd_timer *t;
 
 	tu = file->private_data;
-	if (snd_BUG_ON(!tu->timeri))
-		return -ENXIO;
+	if (!tu->timeri)
+		return -EBADFD;
 	t = tu->timeri->timer;
-	if (snd_BUG_ON(!t))
-		return -ENXIO;
+	if (!t)
+		return -EBADFD;
 	memset(&info, 0, sizeof(info));
 	info.card = t->card ? t->card->number : -1;
 	if (t->hw.flags & SNDRV_TIMER_HW_SLAVE)
@@ -99,8 +99,8 @@ static int snd_timer_user_status_compat(struct file *file,
 	struct snd_timer_status32 status;
 	
 	tu = file->private_data;
-	if (snd_BUG_ON(!tu->timeri))
-		return -ENXIO;
+	if (!tu->timeri)
+		return -EBADFD;
 	memset(&status, 0, sizeof(status));
 	status.tstamp.tv_sec = tu->tstamp.tv_sec;
 	status.tstamp.tv_nsec = tu->tstamp.tv_nsec;
diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c
index e43af18d4383..8632301489fa 100644
--- a/sound/core/vmaster.c
+++ b/sound/core/vmaster.c
@@ -495,7 +495,9 @@ EXPORT_SYMBOL_GPL(snd_ctl_sync_vmaster);
  * Returns 0 if successful, or a negative error code.
  */
 int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
-				 int (*func)(struct snd_kcontrol *, void *),
+				 int (*func)(struct snd_kcontrol *vslave,
+					     struct snd_kcontrol *slave,
+					     void *arg),
 				 void *arg)
 {
 	struct link_master *master;
@@ -507,7 +509,7 @@ int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
 	if (err < 0)
 		return err;
 	list_for_each_entry(slave, &master->slaves, list) {
-		err = func(&slave->slave, arg);
+		err = func(slave->kctl, &slave->slave, arg);
 		if (err < 0)
 			return err;
 	}
diff --git a/sound/hda/hdmi_chmap.c b/sound/hda/hdmi_chmap.c
index 81acc20c2535..f21633cd9b38 100644
--- a/sound/hda/hdmi_chmap.c
+++ b/sound/hda/hdmi_chmap.c
@@ -746,7 +746,7 @@ static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol,
 	memset(pcm_chmap, 0, sizeof(pcm_chmap));
 	chmap->ops.get_chmap(chmap->hdac, pcm_idx, pcm_chmap);
 
-	for (i = 0; i < sizeof(chmap); i++)
+	for (i = 0; i < ARRAY_SIZE(pcm_chmap); i++)
 		ucontrol->value.integer.value[i] = pcm_chmap[i];
 
 	return 0;
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index c1f8e5479bf3..e018ecbf78a8 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1823,7 +1823,9 @@ struct slave_init_arg {
 };
 
 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
-static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg)
+static int init_slave_0dB(struct snd_kcontrol *slave,
+			  struct snd_kcontrol *kctl,
+			  void *_arg)
 {
 	struct slave_init_arg *arg = _arg;
 	int _tlv[4];
@@ -1860,7 +1862,7 @@ static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg)
 	arg->step = step;
 	val = -tlv[2] / step;
 	if (val > 0) {
-		put_kctl_with_value(kctl, val);
+		put_kctl_with_value(slave, val);
 		return val;
 	}
 
@@ -1868,7 +1870,9 @@ static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg)
 }
 
 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */
-static int init_slave_unmute(struct snd_kcontrol *slave, void *_arg)
+static int init_slave_unmute(struct snd_kcontrol *slave,
+			     struct snd_kcontrol *kctl,
+			     void *_arg)
 {
 	return put_kctl_with_value(slave, 1);
 }
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index f958d8d54d15..c71dcacea807 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2463,6 +2463,9 @@ static const struct pci_device_id azx_ids[] = {
 	/* AMD Hudson */
 	{ PCI_DEVICE(0x1022, 0x780d),
 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
+	/* AMD Raven */
+	{ PCI_DEVICE(0x1022, 0x15e3),
+	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
 	/* ATI HDMI */
 	{ PCI_DEVICE(0x1002, 0x0002),
 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index db1a376e27c0..921a10eff43a 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -341,6 +341,9 @@ static void alc_fill_eapd_coef(struct hda_codec *codec)
 	case 0x10ec0299:
 		alc_update_coef_idx(codec, 0x10, 1<<9, 0);
 		break;
+	case 0x10ec0275:
+		alc_update_coef_idx(codec, 0xe, 0, 1<<0);
+		break;
 	case 0x10ec0293:
 		alc_update_coef_idx(codec, 0xa, 1<<13, 0);
 		break;
@@ -6452,6 +6455,10 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
 		ALC225_STANDARD_PINS,
 		{0x12, 0xb7a60130},
 		{0x1b, 0x90170110}),
+	SND_HDA_PIN_QUIRK(0x10ec0233, 0x8086, "Intel NUC Skull Canyon", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x1b, 0x01111010},
+		{0x1e, 0x01451130},
+		{0x21, 0x02211020}),
 	SND_HDA_PIN_QUIRK(0x10ec0236, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
 		{0x12, 0x90a60140},
 		{0x14, 0x90170110},
@@ -6887,7 +6894,7 @@ static int patch_alc269(struct hda_codec *codec)
 	case 0x10ec0703:
 		spec->codec_variant = ALC269_TYPE_ALC700;
 		spec->gen.mixer_nid = 0; /* ALC700 does not have any loopback mixer path */
-		alc_update_coef_idx(codec, 0x4a, 0, 1 << 15); /* Combo jack auto trigger control */
+		alc_update_coef_idx(codec, 0x4a, 1 << 15, 0); /* Combo jack auto trigger control */
 		break;
 
 	}
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index bb8be10b8437..7b49d04e3c60 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -34,6 +34,11 @@ config SND_SOC_INTEL_SST_TOPLEVEL
 	depends on X86 || COMPILE_TEST
 	select SND_SOC_INTEL_MACH
 	select SND_SOC_INTEL_COMMON
+	help
+          Intel ASoC Audio Drivers. If you have a Intel machine that
+          has audio controller with a DSP and I2S or DMIC port, then
+          enable this option by saying Y or M
+          If unsure select "N".
 
 config SND_SOC_INTEL_HASWELL
 	tristate "Intel ASoC SST driver for Haswell/Broadwell"
diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index 26dd5f20f149..eb3396ffba4c 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -43,7 +43,7 @@ static struct uac_clock_source_descriptor *
 	while ((cs = snd_usb_find_csint_desc(ctrl_iface->extra,
 					     ctrl_iface->extralen,
 					     cs, UAC2_CLOCK_SOURCE))) {
-		if (cs->bClockID == clock_id)
+		if (cs->bLength >= sizeof(*cs) && cs->bClockID == clock_id)
 			return cs;
 	}
 
@@ -59,8 +59,11 @@ static struct uac_clock_selector_descriptor *
 	while ((cs = snd_usb_find_csint_desc(ctrl_iface->extra,
 					     ctrl_iface->extralen,
 					     cs, UAC2_CLOCK_SELECTOR))) {
-		if (cs->bClockID == clock_id)
+		if (cs->bLength >= sizeof(*cs) && cs->bClockID == clock_id) {
+			if (cs->bLength < 5 + cs->bNrInPins)
+				return NULL;
 			return cs;
+		}
 	}
 
 	return NULL;
@@ -75,7 +78,7 @@ static struct uac_clock_multiplier_descriptor *
 	while ((cs = snd_usb_find_csint_desc(ctrl_iface->extra,
 					     ctrl_iface->extralen,
 					     cs, UAC2_CLOCK_MULTIPLIER))) {
-		if (cs->bClockID == clock_id)
+		if (cs->bLength >= sizeof(*cs) && cs->bClockID == clock_id)
 			return cs;
 	}
 
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 91bc8f18791e..0537c6322990 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1469,10 +1469,16 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
 	__u8 *bmaControls;
 
 	if (state->mixer->protocol == UAC_VERSION_1) {
+		if (hdr->bLength < 7) {
+			usb_audio_err(state->chip,
+				      "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
+				      unitid);
+			return -EINVAL;
+		}
 		csize = hdr->bControlSize;
-		if (!csize) {
+		if (csize <= 1) {
 			usb_audio_dbg(state->chip,
-				      "unit %u: invalid bControlSize == 0\n",
+				      "unit %u: invalid bControlSize <= 1\n",
 				      unitid);
 			return -EINVAL;
 		}
@@ -1486,6 +1492,12 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
 		}
 	} else {
 		struct uac2_feature_unit_descriptor *ftr = _ftr;
+		if (hdr->bLength < 6) {
+			usb_audio_err(state->chip,
+				      "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
+				      unitid);
+			return -EINVAL;
+		}
 		csize = 4;
 		channels = (hdr->bLength - 6) / 4 - 1;
 		bmaControls = ftr->bmaControls;
@@ -2086,7 +2098,8 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid,
 	const struct usbmix_name_map *map;
 	char **namelist;
 
-	if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) {
+	if (desc->bLength < 5 || !desc->bNrInPins ||
+	    desc->bLength < 5 + desc->bNrInPins) {
 		usb_audio_err(state->chip,
 			"invalid SELECTOR UNIT descriptor %d\n", unitid);
 		return -EINVAL;
@@ -2330,9 +2343,14 @@ void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid)
 {
 	struct usb_mixer_elem_list *list;
 
-	for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem)
+	for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) {
+		struct usb_mixer_elem_info *info =
+			(struct usb_mixer_elem_info *)list;
+		/* invalidate cache, so the value is read from the device */
+		info->cached = 0;
 		snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 			       &list->kctl->id);
+	}
 }
 
 static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer,