diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
index 4b8dfe2..3bfca7c 100644
--- a/sound/isa/ad1816a/ad1816a_lib.c
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -394,7 +394,8 @@
 
 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
 {
-	snd_assert(timer != NULL, return 0);
+	if (snd_BUG_ON(!timer))
+		return 0;
 
 	return 10000;
 }
@@ -961,7 +962,8 @@
 	unsigned int idx;
 	int err;
 
-	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip || !chip->card))
+		return -EINVAL;
 
 	card = chip->card;
 
diff --git a/sound/isa/cs423x/cs4236_lib.c b/sound/isa/cs423x/cs4236_lib.c
index 33e9cf1..6a85fdc 100644
--- a/sound/isa/cs423x/cs4236_lib.c
+++ b/sound/isa/cs423x/cs4236_lib.c
@@ -967,7 +967,8 @@
 	int err;
 	struct snd_kcontrol_new *kcontrol;
 
-	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip || !chip->card))
+		return -EINVAL;
 	card = chip->card;
 	strcpy(card->mixername, snd_wss_chip_id(chip));
 
diff --git a/sound/isa/es1688/es1688_lib.c b/sound/isa/es1688/es1688_lib.c
index 1e1e575..4fbb508 100644
--- a/sound/isa/es1688/es1688_lib.c
+++ b/sound/isa/es1688/es1688_lib.c
@@ -1009,7 +1009,8 @@
 	int err;
 	unsigned char reg, val;
 
-	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip || !chip->card))
+		return -EINVAL;
 
 	card = chip->card;
 
diff --git a/sound/isa/gus/gus_main.c b/sound/isa/gus/gus_main.c
index cccc16c..12eb98f 100644
--- a/sound/isa/gus/gus_main.c
+++ b/sound/isa/gus/gus_main.c
@@ -276,9 +276,11 @@
 	static unsigned char dmas[8] =
 		{6, 1, 0, 2, 0, 3, 4, 5};
 
-	snd_assert(gus != NULL, return -EINVAL);
+	if (snd_BUG_ON(!gus))
+		return -EINVAL;
 	card = gus->card;
-	snd_assert(card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!card))
+		return -EINVAL;
 
 	gus->mix_cntrl_reg &= 0xf8;
 	gus->mix_cntrl_reg |= 0x01;	/* disable MIC, LINE IN, enable LINE OUT */
diff --git a/sound/isa/gus/gus_mixer.c b/sound/isa/gus/gus_mixer.c
index ebdb334..0dd4341 100644
--- a/sound/isa/gus/gus_mixer.c
+++ b/sound/isa/gus/gus_mixer.c
@@ -161,9 +161,11 @@
 	unsigned int idx, max;
 	int err;
 
-	snd_assert(gus != NULL, return -EINVAL);
+	if (snd_BUG_ON(!gus))
+		return -EINVAL;
 	card = gus->card;
-	snd_assert(card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!card))
+		return -EINVAL;
 
 	if (gus->ics_flag)
 		snd_component_add(card, "ICS2101");
diff --git a/sound/isa/gus/gus_pcm.c b/sound/isa/gus/gus_pcm.c
index 99731dc..38510ae 100644
--- a/sound/isa/gus/gus_pcm.c
+++ b/sound/isa/gus/gus_pcm.c
@@ -352,8 +352,10 @@
 	
 	bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
 	len = samples_to_bytes(runtime, count);
-	snd_assert(bpos <= pcmp->dma_size, return -EIO);
-	snd_assert(bpos + len <= pcmp->dma_size, return -EIO);
+	if (snd_BUG_ON(bpos > pcmp->dma_size))
+		return -EIO;
+	if (snd_BUG_ON(bpos + len > pcmp->dma_size))
+		return -EIO;
 	if (copy_from_user(runtime->dma_area + bpos, src, len))
 		return -EFAULT;
 	if (snd_gf1_pcm_use_dma && len > 32) {
@@ -381,8 +383,10 @@
 	
 	bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
 	len = samples_to_bytes(runtime, count);
-	snd_assert(bpos <= pcmp->dma_size, return -EIO);
-	snd_assert(bpos + len <= pcmp->dma_size, return -EIO);
+	if (snd_BUG_ON(bpos > pcmp->dma_size))
+		return -EIO;
+	if (snd_BUG_ON(bpos + len > pcmp->dma_size))
+		return -EIO;
 	snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, count);
 	if (snd_gf1_pcm_use_dma && len > 32) {
 		return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len);
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index 4641daa..440755c 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -675,7 +675,8 @@
 	unsigned int idx;
 	int err;
 
-	snd_assert(miro != NULL && miro->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!miro || !miro->card))
+		return -EINVAL;
 
 	card = miro->card;
 
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c
index b35be7d..96678d5 100644
--- a/sound/isa/sb/emu8000.c
+++ b/sound/isa/sb/emu8000.c
@@ -1023,7 +1023,8 @@
 {
 	int i, err = 0;
 
-	snd_assert(emu != NULL && card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!emu || !card))
+		return -EINVAL;
 
 	spin_lock_init(&emu->control_lock);
 
diff --git a/sound/isa/sb/emu8000_patch.c b/sound/isa/sb/emu8000_patch.c
index 1be16c9..c99c607 100644
--- a/sound/isa/sb/emu8000_patch.c
+++ b/sound/isa/sb/emu8000_patch.c
@@ -156,7 +156,8 @@
 	struct snd_emu8000 *emu;
 
 	emu = rec->hw;
-	snd_assert(sp != NULL, return -EINVAL);
+	if (snd_BUG_ON(!sp))
+		return -EINVAL;
 
 	if (sp->v.size == 0)
 		return 0;
diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c
index 35f3d7b..49037d0 100644
--- a/sound/isa/sb/sb16_csp.c
+++ b/sound/isa/sb/sb16_csp.c
@@ -198,7 +198,8 @@
 	struct snd_sb_csp_start start_info;
 	int err;
 
-	snd_assert(p != NULL, return -EINVAL);
+	if (snd_BUG_ON(!p))
+		return -EINVAL;
 
 	if (snd_sb_csp_check_version(p))
 		return -ENODEV;
@@ -1046,7 +1047,8 @@
 	struct snd_card *card;
 	int err;
 
-	snd_assert(p != NULL, return -EINVAL);
+	if (snd_BUG_ON(!p))
+		return -EINVAL;
 
 	card = p->chip->card;
 	p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
@@ -1071,7 +1073,8 @@
 	struct snd_card *card;
 	unsigned long flags;
 
-	snd_assert(p != NULL, return);
+	if (snd_BUG_ON(!p))
+		return;
 
 	card = p->chip->card;	
 	
diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c
index f7e8192..2a6cc1c 100644
--- a/sound/isa/sb/sb16_main.c
+++ b/sound/isa/sb/sb16_main.c
@@ -669,7 +669,8 @@
 static int snd_sb16_set_dma_mode(struct snd_sb *chip, int what)
 {
 	if (chip->dma8 < 0 || chip->dma16 < 0) {
-		snd_assert(what == 0, return -EINVAL);
+		if (snd_BUG_ON(what))
+			return -EINVAL;
 		return 0;
 	}
 	if (what == 0) {
diff --git a/sound/isa/sb/sb8_main.c b/sound/isa/sb/sb8_main.c
index fe03bb8..658d557 100644
--- a/sound/isa/sb/sb8_main.c
+++ b/sound/isa/sb/sb8_main.c
@@ -111,7 +111,9 @@
 	switch (chip->hardware) {
 	case SB_HW_PRO:
 		if (runtime->channels > 1) {
-			snd_assert(rate == SB8_RATE(11025) || rate == SB8_RATE(22050), return -EINVAL);
+			if (snd_BUG_ON(rate != SB8_RATE(11025) &&
+				       rate != SB8_RATE(22050)))
+				return -EINVAL;
 			chip->playback_format = SB_DSP_HI_OUTPUT_AUTO;
 			break;
 		}
@@ -237,7 +239,9 @@
 	switch (chip->hardware) {
 	case SB_HW_PRO:
 		if (runtime->channels > 1) {
-			snd_assert(rate == SB8_RATE(11025) || rate == SB8_RATE(22050), return -EINVAL);
+			if (snd_BUG_ON(rate != SB8_RATE(11025) &&
+				       rate != SB8_RATE(22050)))
+				return -EINVAL;
 			chip->capture_format = SB_DSP_HI_INPUT_AUTO;
 			break;
 		}
diff --git a/sound/isa/sb/sb_common.c b/sound/isa/sb/sb_common.c
index b432d9a..27a6515 100644
--- a/sound/isa/sb/sb_common.c
+++ b/sound/isa/sb/sb_common.c
@@ -219,7 +219,8 @@
 		.dev_free =	snd_sbdsp_dev_free,
 	};
 
-	snd_assert(r_chip != NULL, return -EINVAL);
+	if (snd_BUG_ON(!r_chip))
+		return -EINVAL;
 	*r_chip = NULL;
 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 	if (chip == NULL)
diff --git a/sound/isa/sb/sb_mixer.c b/sound/isa/sb/sb_mixer.c
index 73d4572..406a431 100644
--- a/sound/isa/sb/sb_mixer.c
+++ b/sound/isa/sb/sb_mixer.c
@@ -792,7 +792,8 @@
 	struct snd_card *card;
 	int err;
 
-	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip || !chip->card))
+		return -EINVAL;
 
 	card = chip->card;
 
@@ -925,7 +926,8 @@
 static void save_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
 {
 	unsigned char *val = chip->saved_regs;
-	snd_assert(num_regs <= ARRAY_SIZE(chip->saved_regs), return);
+	if (snd_BUG_ON(num_regs > ARRAY_SIZE(chip->saved_regs)))
+		return;
 	for (; num_regs; num_regs--)
 		*val++ = snd_sbmixer_read(chip, *regs++);
 }
@@ -933,7 +935,8 @@
 static void restore_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
 {
 	unsigned char *val = chip->saved_regs;
-	snd_assert(num_regs <= ARRAY_SIZE(chip->saved_regs), return);
+	if (snd_BUG_ON(num_regs > ARRAY_SIZE(chip->saved_regs)))
+		return;
 	for (; num_regs; num_regs--)
 		snd_sbmixer_write(chip, *regs++, *val++);
 }
diff --git a/sound/isa/wavefront/wavefront_fx.c b/sound/isa/wavefront/wavefront_fx.c
index 2efaa7f..dfc449a 100644
--- a/sound/isa/wavefront/wavefront_fx.c
+++ b/sound/isa/wavefront/wavefront_fx.c
@@ -180,11 +180,11 @@
 	unsigned short *pd;
 	int err = 0;
 
-	snd_assert(sdev->card != NULL, return -ENODEV);
-	
 	card = sdev->card;
-
-	snd_assert(card->private_data != NULL, return -ENODEV);
+	if (snd_BUG_ON(!card))
+		return -ENODEV;
+	if (snd_BUG_ON(!card->private_data))
+		return -ENODEV;
 
 	acard = card->private_data;
 	dev = &acard->wavefront;
diff --git a/sound/isa/wavefront/wavefront_midi.c b/sound/isa/wavefront/wavefront_midi.c
index a33384a..f14a7c0 100644
--- a/sound/isa/wavefront/wavefront_midi.c
+++ b/sound/isa/wavefront/wavefront_midi.c
@@ -235,8 +235,10 @@
 	snd_wavefront_midi_t *midi;
 	snd_wavefront_mpu_id mpu;
 
-	snd_assert(substream != NULL && substream->rmidi != NULL, return -EIO);
-	snd_assert(substream->rmidi->private_data != NULL, return -EIO);
+	if (snd_BUG_ON(!substream || !substream->rmidi))
+		return -ENXIO;
+	if (snd_BUG_ON(!substream->rmidi->private_data))
+		return -ENXIO;
 
 	mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
 
@@ -257,8 +259,10 @@
 	snd_wavefront_midi_t *midi;
 	snd_wavefront_mpu_id mpu;
 
-	snd_assert(substream != NULL && substream->rmidi != NULL, return -EIO);
-	snd_assert(substream->rmidi->private_data != NULL, return -EIO);
+	if (snd_BUG_ON(!substream || !substream->rmidi))
+		return -ENXIO;
+	if (snd_BUG_ON(!substream->rmidi->private_data))
+		return -ENXIO;
 
 	mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
 
@@ -279,8 +283,10 @@
 	snd_wavefront_midi_t *midi;
 	snd_wavefront_mpu_id mpu;
 
-	snd_assert(substream != NULL && substream->rmidi != NULL, return -EIO);
-	snd_assert(substream->rmidi->private_data != NULL, return -EIO);
+	if (snd_BUG_ON(!substream || !substream->rmidi))
+		return -ENXIO;
+	if (snd_BUG_ON(!substream->rmidi->private_data))
+		return -ENXIO;
 
 	mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
 
@@ -300,8 +306,10 @@
 	snd_wavefront_midi_t *midi;
 	snd_wavefront_mpu_id mpu;
 
-	snd_assert(substream != NULL && substream->rmidi != NULL, return -EIO);
-	snd_assert(substream->rmidi->private_data != NULL, return -EIO);
+	if (snd_BUG_ON(!substream || !substream->rmidi))
+		return -ENXIO;
+	if (snd_BUG_ON(!substream->rmidi->private_data))
+		return -ENXIO;
 
 	mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
 
diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index 0bb9b92..4c41082 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -1648,9 +1648,10 @@
 
 	card = (struct snd_card *) hw->card;
 
-	snd_assert(card != NULL, return -ENODEV);
-
-	snd_assert(card->private_data != NULL, return -ENODEV);
+	if (snd_BUG_ON(!card))
+		return -ENODEV;
+	if (snd_BUG_ON(!card->private_data))
+		return -ENODEV;
 
 	acard = card->private_data;
 	dev = &acard->wavefront;
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 6b7a0fc..c5beec6 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -1946,7 +1946,8 @@
 	char **ptexts = texts;
 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
 
-	snd_assert(chip->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip->card))
+		return -EINVAL;
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	uinfo->count = 2;
 	uinfo->value.enumerated.items = 4;
@@ -2262,7 +2263,8 @@
 	unsigned int idx;
 	int err;
 
-	snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip || !chip->pcm))
+		return -EINVAL;
 
 	card = chip->card;