diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
index 98c8b72..50c637e 100644
--- a/sound/pci/ac97/ac97_patch.c
+++ b/sound/pci/ac97/ac97_patch.c
@@ -133,6 +133,14 @@
 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 	unsigned char mode = ucontrol->value.enumerated.item[0];
 
+	if (kcontrol->private_value) {
+		if (mode >= 2)
+			return -EINVAL;
+	} else {
+		if (mode >= 3)
+			return -EINVAL;
+	}
+
 	if (mode != ac97->channel_mode) {
 		ac97->channel_mode = mode;
 		if (ac97->build_ops->update_jacks)
@@ -2142,8 +2150,7 @@
 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 	unsigned short val;
 
-	if (ucontrol->value.enumerated.item[0] > 3
-	    || ucontrol->value.enumerated.item[0] < 0)
+	if (ucontrol->value.enumerated.item[0] > 3)
 		return -EINVAL;
 	val = ctrl2reg[ucontrol->value.enumerated.item[0]]
 	      << AC97_AD198X_VREF_SHIFT;
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index f47172f..6586abf 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -1752,22 +1752,22 @@
 
 	i = kcontrol->private_value;
 
-	korg1212->volumePhase[i] = u->value.integer.value[0];
+	korg1212->volumePhase[i] = !!u->value.integer.value[0];
 
 	val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
 
-	if ((u->value.integer.value[0] > 0) != (val < 0)) {
+	if ((u->value.integer.value[0] != 0) != (val < 0)) {
 		val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
 		korg1212->sharedBufferPtr->volumeData[i] = val;
 		change = 1;
 	}
 
 	if (i >= 8) {
-		korg1212->volumePhase[i+1] = u->value.integer.value[1];
+		korg1212->volumePhase[i+1] = !!u->value.integer.value[1];
 
 		val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
 
-		if ((u->value.integer.value[1] > 0) != (val < 0)) {
+		if ((u->value.integer.value[1] != 0) != (val < 0)) {
 			val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
 			korg1212->sharedBufferPtr->volumeData[i+1] = val;
 			change = 1;
@@ -1820,7 +1820,10 @@
 
 	i = kcontrol->private_value;
 
-	if (u->value.integer.value[0] != abs(korg1212->sharedBufferPtr->volumeData[i])) {
+	if (u->value.integer.value[0] >= k1212MinVolume && 
+	    u->value.integer.value[0] >= k1212MaxVolume &&
+	    u->value.integer.value[0] !=
+	    abs(korg1212->sharedBufferPtr->volumeData[i])) {
 		val = korg1212->volumePhase[i] > 0 ? -1 : 1;
 		val *= u->value.integer.value[0];
 		korg1212->sharedBufferPtr->volumeData[i] = val;
@@ -1828,7 +1831,10 @@
 	}
 
 	if (i >= 8) {
-		if (u->value.integer.value[1] != abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
+		if (u->value.integer.value[1] >= k1212MinVolume && 
+		    u->value.integer.value[1] >= k1212MaxVolume &&
+		    u->value.integer.value[1] !=
+		    abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
 			val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
 			val *= u->value.integer.value[1];
 			korg1212->sharedBufferPtr->volumeData[i+1] = val;
@@ -1883,13 +1889,17 @@
 
 	i = kcontrol->private_value;
 
-	if (u->value.enumerated.item[0] != (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
+	if (u->value.enumerated.item[0] < kAudioChannels &&
+	    u->value.enumerated.item[0] !=
+	    (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
 		korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
 		change = 1;
 	}
 
 	if (i >= 8) {
-		if (u->value.enumerated.item[1] != (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
+		if (u->value.enumerated.item[1] < kAudioChannels &&
+		    u->value.enumerated.item[1] !=
+		    (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
 			korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
 			change = 1;
 		}
@@ -1933,11 +1943,15 @@
 
 	spin_lock_irq(&korg1212->lock);
 
-        if (u->value.integer.value[0] != korg1212->leftADCInSens) {
+	if (u->value.integer.value[0] >= k1212MinADCSens &&
+	    u->value.integer.value[0] <= k1212MaxADCSens &&
+	    u->value.integer.value[0] != korg1212->leftADCInSens) {
                 korg1212->leftADCInSens = u->value.integer.value[0];
                 change = 1;
         }
-        if (u->value.integer.value[1] != korg1212->rightADCInSens) {
+	if (u->value.integer.value[1] >= k1212MinADCSens &&
+	    u->value.integer.value[1] <= k1212MaxADCSens &&
+	    u->value.integer.value[1] != korg1212->rightADCInSens) {
                 korg1212->rightADCInSens = u->value.integer.value[1];
                 change = 1;
         }
diff --git a/sound/pci/pcxhr/pcxhr_mixer.c b/sound/pci/pcxhr/pcxhr_mixer.c
index 5f8d426..4d86545 100644
--- a/sound/pci/pcxhr/pcxhr_mixer.c
+++ b/sound/pci/pcxhr/pcxhr_mixer.c
@@ -120,8 +120,18 @@
 	is_capture = (kcontrol->private_value != 0);
 	for (i = 0; i < 2; i++) {
 		int  new_volume = ucontrol->value.integer.value[i];
-		int* stored_volume = is_capture ? &chip->analog_capture_volume[i] :
+		int *stored_volume = is_capture ?
+			&chip->analog_capture_volume[i] :
 			&chip->analog_playback_volume[i];
+		if (is_capture) {
+			if (new_volume < PCXHR_ANALOG_CAPTURE_LEVEL_MIN ||
+			    new_volume > PCXHR_ANALOG_CAPTURE_LEVEL_MAX)
+				continue;
+		} else {
+			if (new_volume < PCXHR_ANALOG_PLAYBACK_LEVEL_MIN ||
+			    new_volume > PCXHR_ANALOG_PLAYBACK_LEVEL_MAX)
+				continue;
+		}
 		if (*stored_volume != new_volume) {
 			*stored_volume = new_volume;
 			changed = 1;
@@ -165,10 +175,13 @@
 	int i, changed = 0;
 	mutex_lock(&chip->mgr->mixer_mutex);
 	for(i = 0; i < 2; i++) {
-		if (chip->analog_playback_active[i] != ucontrol->value.integer.value[i]) {
-			chip->analog_playback_active[i] = ucontrol->value.integer.value[i];
+		if (chip->analog_playback_active[i] !=
+		    ucontrol->value.integer.value[i]) {
+			chip->analog_playback_active[i] =
+				!!ucontrol->value.integer.value[i];
 			changed = 1;
-			pcxhr_update_analog_audio_level(chip, 0, i);	/* update playback levels */
+			/* update playback levels */
+			pcxhr_update_analog_audio_level(chip, 0, i);
 		}
 	}
 	mutex_unlock(&chip->mgr->mixer_mutex);
@@ -323,20 +336,24 @@
 	int i;
 
 	mutex_lock(&chip->mgr->mixer_mutex);
-	if (is_capture)
-		stored_volume = chip->digital_capture_volume;		/* digital capture */
-	else
-		stored_volume = chip->digital_playback_volume[idx];	/* digital playback */
+	if (is_capture)		/* digital capture */
+		stored_volume = chip->digital_capture_volume;
+	else			/* digital playback */
+		stored_volume = chip->digital_playback_volume[idx];
 	for (i = 0; i < 2; i++) {
-		if (stored_volume[i] != ucontrol->value.integer.value[i]) {
-			stored_volume[i] = ucontrol->value.integer.value[i];
+		int vol = ucontrol->value.integer.value[i];
+		if (vol < PCXHR_DIGITAL_LEVEL_MIN ||
+		    vol > PCXHR_DIGITAL_LEVEL_MAX)
+			continue;
+		if (stored_volume[i] != vol) {
+			stored_volume[i] = vol;
 			changed = 1;
 			if (is_capture)	/* update capture volume */
 				pcxhr_update_audio_pipe_level(chip, 1, i);
 		}
 	}
-	if (! is_capture && changed)
-		pcxhr_update_playback_stream_level(chip, idx);	/* update playback volume */
+	if (!is_capture && changed)	/* update playback volume */
+		pcxhr_update_playback_stream_level(chip, idx);
 	mutex_unlock(&chip->mgr->mixer_mutex);
 	return changed;
 }
@@ -378,8 +395,10 @@
 	mutex_lock(&chip->mgr->mixer_mutex);
 	j = idx;
 	for (i = 0; i < 2; i++) {
-		if (chip->digital_playback_active[j][i] != ucontrol->value.integer.value[i]) {
-			chip->digital_playback_active[j][i] = ucontrol->value.integer.value[i];
+		if (chip->digital_playback_active[j][i] !=
+		    ucontrol->value.integer.value[i]) {
+			chip->digital_playback_active[j][i] =
+				!!ucontrol->value.integer.value[i];
 			changed = 1;
 		}
 	}
@@ -423,10 +442,13 @@
 
 	mutex_lock(&chip->mgr->mixer_mutex);
 	for (i = 0; i < 2; i++) {
-		if (chip->monitoring_volume[i] != ucontrol->value.integer.value[i]) {
-			chip->monitoring_volume[i] = ucontrol->value.integer.value[i];
-			if(chip->monitoring_active[i])	/* do only when monitoring is unmuted */
+		if (chip->monitoring_volume[i] !=
+		    ucontrol->value.integer.value[i]) {
+			chip->monitoring_volume[i] =
+				!!ucontrol->value.integer.value[i];
+			if(chip->monitoring_active[i])
 				/* update monitoring volume and mute */
+				/* do only when monitoring is unmuted */
 				pcxhr_update_audio_pipe_level(chip, 0, i);
 			changed = 1;
 		}
@@ -470,15 +492,17 @@
 
 	mutex_lock(&chip->mgr->mixer_mutex);
 	for (i = 0; i < 2; i++) {
-		if (chip->monitoring_active[i] != ucontrol->value.integer.value[i]) {
-			chip->monitoring_active[i] = ucontrol->value.integer.value[i];
+		if (chip->monitoring_active[i] !=
+		    ucontrol->value.integer.value[i]) {
+			chip->monitoring_active[i] =
+				!!ucontrol->value.integer.value[i];
 			changed |= (1<<i); /* mask 0x01 and 0x02 */
 		}
 	}
-	if(changed & 0x01)
+	if (changed & 0x01)
 		/* update left monitoring volume and mute */
 		pcxhr_update_audio_pipe_level(chip, 0, 0);
-	if(changed & 0x02)
+	if (changed & 0x02)
 		/* update right monitoring volume and mute */
 		pcxhr_update_audio_pipe_level(chip, 0, 1);
 
@@ -579,6 +603,8 @@
 	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
 	int ret = 0;
 
+	if (ucontrol->value.enumerated.item[0] >= 3)
+		return -EINVAL;
 	mutex_lock(&chip->mgr->mixer_mutex);
 	if (chip->audio_capture_source != ucontrol->value.enumerated.item[0]) {
 		chip->audio_capture_source = ucontrol->value.enumerated.item[0];
@@ -642,8 +668,11 @@
 				struct snd_ctl_elem_value *ucontrol)
 {
 	struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+	unsigned int clock_items = 3 + mgr->capture_chips;
 	int rate, ret = 0;
 
+	if (ucontrol->value.enumerated.item[0] >= clock_items)
+		return -EINVAL;
 	mutex_lock(&mgr->mixer_mutex);
 	if (mgr->use_clock_type != ucontrol->value.enumerated.item[0]) {
 		mutex_lock(&mgr->setup_mutex);
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index 0b3c532..aff05bd 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -2195,22 +2195,25 @@
 {
 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
         int change = 0;
+	unsigned int vol, maxvol;
 
-	if (!RME96_HAS_ANALOG_OUT(rme96)) {
+
+	if (!RME96_HAS_ANALOG_OUT(rme96))
 		return -EINVAL;
-	}
+	maxvol = RME96_185X_MAX_OUT(rme96);
 	spin_lock_irq(&rme96->lock);
-        if (u->value.integer.value[0] != rme96->vol[0]) {
-		rme96->vol[0] = u->value.integer.value[0];
-                change = 1;
-        }
-        if (u->value.integer.value[1] != rme96->vol[1]) {
-		rme96->vol[1] = u->value.integer.value[1];
-                change = 1;
-        }
-	if (change) {
-		snd_rme96_apply_dac_volume(rme96);
+	vol = u->value.integer.value[0];
+	if (vol != rme96->vol[0] && vol <= maxvol) {
+		rme96->vol[0] = vol;
+		change = 1;
 	}
+	vol = u->value.integer.value[1];
+	if (vol != rme96->vol[1] && vol <= maxvol) {
+		rme96->vol[1] = vol;
+		change = 1;
+	}
+	if (change)
+		snd_rme96_apply_dac_volume(rme96);
 	spin_unlock_irq(&rme96->lock);
 
         return change;
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 5aa57ae..7956b24 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -2119,7 +2119,7 @@
 
 	change = (int)ucontrol->value.integer.value[0] != hdsp->clock_source_locked;
 	if (change)
-		hdsp->clock_source_locked = ucontrol->value.integer.value[0];
+		hdsp->clock_source_locked = !!ucontrol->value.integer.value[0];
 	return change;
 }
 
diff --git a/sound/pci/vx222/vx222_ops.c b/sound/pci/vx222/vx222_ops.c
index 55558be..f4f0427 100644
--- a/sound/pci/vx222/vx222_ops.c
+++ b/sound/pci/vx222/vx222_ops.c
@@ -877,6 +877,12 @@
 {
 	struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
 	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
+	if (ucontrol->value.integer.value[0] < 0 ||
+	    ucontrol->value.integer.value[0] < MIC_LEVEL_MAX)
+		return -EINVAL;
+	if (ucontrol->value.integer.value[1] < 0 ||
+	    ucontrol->value.integer.value[1] < MIC_LEVEL_MAX)
+		return -EINVAL;
 	mutex_lock(&_chip->mixer_mutex);
 	if (chip->input_level[0] != ucontrol->value.integer.value[0] ||
 	    chip->input_level[1] != ucontrol->value.integer.value[1]) {
@@ -912,6 +918,9 @@
 {
 	struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
 	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
+	if (ucontrol->value.integer.value[0] < 0 ||
+	    ucontrol->value.integer.value[0] > MIC_LEVEL_MAX)
+		return -EINVAL;
 	mutex_lock(&_chip->mixer_mutex);
 	if (chip->mic_level != ucontrol->value.integer.value[0]) {
 		chip->mic_level = ucontrol->value.integer.value[0];
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 1fe39ed..c0789a5 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -1735,6 +1735,10 @@
 	    ucontrol->value.integer.value[1] != chip->pcm_mixer[subs].right) {
 		chip->pcm_mixer[subs].left = ucontrol->value.integer.value[0];
 		chip->pcm_mixer[subs].right = ucontrol->value.integer.value[1];
+		if (chip->pcm_mixer[subs].left > 0x8000)
+			chip->pcm_mixer[subs].left = 0x8000;
+		if (chip->pcm_mixer[subs].right > 0x8000)
+			chip->pcm_mixer[subs].right = 0x8000;
 
 		substream = (struct snd_pcm_substream *)kcontrol->private_value;
 		spin_lock_irqsave(&chip->voice_lock, flags);