ALSA: Kill snd_assert() in sound/core/*

Kill snd_assert() in sound/core/*, either removed or replaced with
if () with snd_BUG_ON().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

9 files changed, 173 insertions, 99 deletions

diff --git a/sound/core/oss/copy.c b/sound/core/oss/copy.c
index 9ded30d..05b58d4 100644
--- a/sound/core/oss/copy.c
+++ b/sound/core/oss/copy.c
@@ -32,17 +32,18 @@ static snd_pcm_sframes_t copy_transfer(struct snd_pcm_plugin *plugin,
 	unsigned int channel;
 	unsigned int nchannels;
 
-	snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+		return -ENXIO;
 	if (frames == 0)
 		return 0;
 	nchannels = plugin->src_format.channels;
 	for (channel = 0; channel < nchannels; channel++) {
-		snd_assert(src_channels->area.first % 8 == 0 &&
-			   src_channels->area.step % 8 == 0,
-			   return -ENXIO);
-		snd_assert(dst_channels->area.first % 8 == 0 &&
-			   dst_channels->area.step % 8 == 0,
-			   return -ENXIO);
+		if (snd_BUG_ON(src_channels->area.first % 8 ||
+			       src_channels->area.step % 8))
+			return -ENXIO;
+		if (snd_BUG_ON(dst_channels->area.first % 8 ||
+			       dst_channels->area.step % 8))
+			return -ENXIO;
 		if (!src_channels->enabled) {
 			if (dst_channels->wanted)
 				snd_pcm_area_silence(&dst_channels->area, 0, frames, plugin->dst_format.format);
@@ -66,15 +67,20 @@ int snd_pcm_plugin_build_copy(struct snd_pcm_substream *plug,
 	struct snd_pcm_plugin *plugin;
 	int width;
 
-	snd_assert(r_plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!r_plugin))
+		return -ENXIO;
 	*r_plugin = NULL;
 
-	snd_assert(src_format->format == dst_format->format, return -ENXIO);
-	snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
-	snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
+	if (snd_BUG_ON(src_format->format != dst_format->format))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->rate != dst_format->rate))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->channels != dst_format->channels))
+		return -ENXIO;
 
 	width = snd_pcm_format_physical_width(src_format->format);
-	snd_assert(width > 0, return -ENXIO);
+	if (snd_BUG_ON(width <= 0))
+		return -ENXIO;
 
 	err = snd_pcm_plugin_build(plug, "copy", src_format, dst_format,
 				   0, &plugin);
diff --git a/sound/core/oss/io.c b/sound/core/oss/io.c
index f874f6c..6faa1d71 100644
--- a/sound/core/oss/io.c
+++ b/sound/core/oss/io.c
@@ -39,14 +39,17 @@ static snd_pcm_sframes_t io_playback_transfer(struct snd_pcm_plugin *plugin,
 				    struct snd_pcm_plugin_channel *dst_channels,
 				    snd_pcm_uframes_t frames)
 {
-	snd_assert(plugin != NULL, return -ENXIO);
-	snd_assert(src_channels != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin))
+		return -ENXIO;
+	if (snd_BUG_ON(!src_channels))
+		return -ENXIO;
 	if (plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED) {
 		return pcm_write(plugin->plug, src_channels->area.addr, frames);
 	} else {
 		int channel, channels = plugin->dst_format.channels;
 		void **bufs = (void**)plugin->extra_data;
-		snd_assert(bufs != NULL, return -ENXIO);
+		if (snd_BUG_ON(!bufs))
+			return -ENXIO;
 		for (channel = 0; channel < channels; channel++) {
 			if (src_channels[channel].enabled)
 				bufs[channel] = src_channels[channel].area.addr;
@@ -62,14 +65,17 @@ static snd_pcm_sframes_t io_capture_transfer(struct snd_pcm_plugin *plugin,
 				   struct snd_pcm_plugin_channel *dst_channels,
 				   snd_pcm_uframes_t frames)
 {
-	snd_assert(plugin != NULL, return -ENXIO);
-	snd_assert(dst_channels != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin))
+		return -ENXIO;
+	if (snd_BUG_ON(!dst_channels))
+		return -ENXIO;
 	if (plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED) {
 		return pcm_read(plugin->plug, dst_channels->area.addr, frames);
 	} else {
 		int channel, channels = plugin->dst_format.channels;
 		void **bufs = (void**)plugin->extra_data;
-		snd_assert(bufs != NULL, return -ENXIO);
+		if (snd_BUG_ON(!bufs))
+			return -ENXIO;
 		for (channel = 0; channel < channels; channel++) {
 			if (dst_channels[channel].enabled)
 				bufs[channel] = dst_channels[channel].area.addr;
@@ -107,9 +113,11 @@ int snd_pcm_plugin_build_io(struct snd_pcm_substream *plug,
 	struct snd_pcm_plugin_format format;
 	struct snd_pcm_plugin *plugin;
 
-	snd_assert(r_plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!r_plugin))
+		return -ENXIO;
 	*r_plugin = NULL;
-	snd_assert(plug != NULL && params != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plug || !params))
+		return -ENXIO;
 	format.format = params_format(params);
 	format.rate = params_rate(params);
 	format.channels = params_channels(params);
diff --git a/sound/core/oss/linear.c b/sound/core/oss/linear.c
index da3dbd4..4c1d168 100644
--- a/sound/core/oss/linear.c
+++ b/sound/core/oss/linear.c
@@ -92,7 +92,8 @@ static snd_pcm_sframes_t linear_transfer(struct snd_pcm_plugin *plugin,
 {
 	struct linear_priv *data;
 
-	snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+		return -ENXIO;
 	data = (struct linear_priv *)plugin->extra_data;
 	if (frames == 0)
 		return 0;
@@ -100,12 +101,12 @@ static snd_pcm_sframes_t linear_transfer(struct snd_pcm_plugin *plugin,
 	{
 		unsigned int channel;
 		for (channel = 0; channel < plugin->src_format.channels; channel++) {
-			snd_assert(src_channels[channel].area.first % 8 == 0 &&
-				   src_channels[channel].area.step % 8 == 0,
-				   return -ENXIO);
-			snd_assert(dst_channels[channel].area.first % 8 == 0 &&
-				   dst_channels[channel].area.step % 8 == 0,
-				   return -ENXIO);
+			if (snd_BUG_ON(src_channels[channel].area.first % 8 ||
+				       src_channels[channel].area.step % 8))
+				return -ENXIO;
+			if (snd_BUG_ON(dst_channels[channel].area.first % 8 ||
+				       dst_channels[channel].area.step % 8))
+				return -ENXIO;
 		}
 	}
 #endif
@@ -154,13 +155,17 @@ int snd_pcm_plugin_build_linear(struct snd_pcm_substream *plug,
 	struct linear_priv *data;
 	struct snd_pcm_plugin *plugin;
 
-	snd_assert(r_plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!r_plugin))
+		return -ENXIO;
 	*r_plugin = NULL;
 
-	snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
-	snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
-	snd_assert(snd_pcm_format_linear(src_format->format) &&
-		   snd_pcm_format_linear(dst_format->format), return -ENXIO);
+	if (snd_BUG_ON(src_format->rate != dst_format->rate))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->channels != dst_format->channels))
+		return -ENXIO;
+	if (snd_BUG_ON(!snd_pcm_format_linear(src_format->format) ||
+		       !snd_pcm_format_linear(dst_format->format)))
+		return -ENXIO;
 
 	err = snd_pcm_plugin_build(plug, "linear format conversion",
 				   src_format, dst_format,
diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
index 581aa2c..4690b8b 100644
--- a/sound/core/oss/mixer_oss.c
+++ b/sound/core/oss/mixer_oss.c
@@ -257,8 +257,10 @@ static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
 		result = pslot->get_volume(fmixer, pslot, &left, &right);
 	if (!pslot->stereo)
 		right = left;
-	snd_assert(left >= 0 && left <= 100, return -EIO);
-	snd_assert(right >= 0 && right <= 100, return -EIO);
+	if (snd_BUG_ON(left < 0 || left > 100))
+		return -EIO;
+	if (snd_BUG_ON(right < 0 || right > 100))
+		return -EIO;
 	if (result >= 0) {
 		pslot->volume[0] = left;
 		pslot->volume[1] = right;
@@ -298,7 +300,8 @@ static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int
 	int __user *p = argp;
 	int tmp;
 
-	snd_assert(fmixer != NULL, return -ENXIO);
+	if (snd_BUG_ON(!fmixer))
+		return -ENXIO;
 	if (((cmd >> 8) & 0xff) == 'M') {
 		switch (cmd) {
 		case SOUND_MIXER_INFO:
@@ -368,7 +371,8 @@ int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned l
 {
 	struct snd_mixer_oss_file fmixer;
 	
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	if (card->mixer_oss == NULL)
 		return -ENXIO;
 	memset(&fmixer, 0, sizeof(fmixer));
@@ -1284,9 +1288,11 @@ static int snd_mixer_oss_free1(void *private)
 	struct snd_card *card;
 	int idx;
  
-	snd_assert(mixer != NULL, return -ENXIO);
+	if (!mixer)
+		return 0;
 	card = mixer->card;
-	snd_assert(mixer == card->mixer_oss, return -ENXIO);
+	if (snd_BUG_ON(mixer != card->mixer_oss))
+		return -ENXIO;
 	card->mixer_oss = NULL;
 	for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
 		struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
diff --git a/sound/core/oss/mulaw.c b/sound/core/oss/mulaw.c
index 77f9619..f7649d4 100644
--- a/sound/core/oss/mulaw.c
+++ b/sound/core/oss/mulaw.c
@@ -252,19 +252,20 @@ static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin,
 {
 	struct mulaw_priv *data;
 
-	snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+		return -ENXIO;
 	if (frames == 0)
 		return 0;
 #ifdef CONFIG_SND_DEBUG
 	{
 		unsigned int channel;
 		for (channel = 0; channel < plugin->src_format.channels; channel++) {
-			snd_assert(src_channels[channel].area.first % 8 == 0 &&
-				   src_channels[channel].area.step % 8 == 0,
-				   return -ENXIO);
-			snd_assert(dst_channels[channel].area.first % 8 == 0 &&
-				   dst_channels[channel].area.step % 8 == 0,
-				   return -ENXIO);
+			if (snd_BUG_ON(src_channels[channel].area.first % 8 ||
+				       src_channels[channel].area.step % 8))
+				return -ENXIO;
+			if (snd_BUG_ON(dst_channels[channel].area.first % 8 ||
+				       dst_channels[channel].area.step % 8))
+				return -ENXIO;
 		}
 	}
 #endif
@@ -305,11 +306,14 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
 	struct snd_pcm_plugin_format *format;
 	mulaw_f func;
 
-	snd_assert(r_plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!r_plugin))
+		return -ENXIO;
 	*r_plugin = NULL;
 
-	snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
-	snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
+	if (snd_BUG_ON(src_format->rate != dst_format->rate))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->channels != dst_format->channels))
+		return -ENXIO;
 
 	if (dst_format->format == SNDRV_PCM_FORMAT_MU_LAW) {
 		format = src_format;
@@ -323,7 +327,8 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
 		snd_BUG();
 		return -EINVAL;
 	}
-	snd_assert(snd_pcm_format_linear(format->format) != 0, return -ENXIO);
+	if (snd_BUG_ON(!snd_pcm_format_linear(format->format)))
+		return -ENXIO;
 
 	err = snd_pcm_plugin_build(plug, "Mu-Law<->linear conversion",
 				   src_format, dst_format,
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 4c601b1..1af62b8 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -452,7 +452,8 @@ static int snd_pcm_hw_param_near(struct snd_pcm_substream *pcm,
 	} else {
 		*params = *save;
 		max = snd_pcm_hw_param_max(pcm, params, var, max, &maxdir);
-		snd_assert(max >= 0, return -EINVAL);
+		if (max < 0)
+			return max;
 		last = 1;
 	}
  _end:
@@ -461,7 +462,7 @@ static int snd_pcm_hw_param_near(struct snd_pcm_substream *pcm,
 		v = snd_pcm_hw_param_last(pcm, params, var, dir);
 	else
 		v = snd_pcm_hw_param_first(pcm, params, var, dir);
-	snd_assert(v >= 0, return -EINVAL);
+	snd_BUG_ON(v < 0);
 	return v;
 }
 
@@ -778,7 +779,8 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
 	while (oss_period_size * oss_periods > oss_buffer_size)
 		oss_period_size /= 2;
 
-	snd_assert(oss_period_size >= 16, return -EINVAL);
+	if (oss_period_size < 16)
+		return -EINVAL;
 	runtime->oss.period_bytes = oss_period_size;
 	runtime->oss.period_frames = 1;
 	runtime->oss.periods = oss_periods;
@@ -895,7 +897,8 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
 		}
 	}
 	err = _snd_pcm_hw_param_set(sparams, SNDRV_PCM_HW_PARAM_FORMAT, sformat, 0);
-	snd_assert(err >= 0, goto failure);
+	if (err < 0)
+		goto failure;
 
 	if (direct) {
 		memcpy(params, sparams, sizeof(*params));
@@ -958,11 +961,13 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
 
 	n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size);
 	err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL);
-	snd_assert(err >= 0, goto failure);
+	if (err < 0)
+		goto failure;
 
 	err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS,
 				     runtime->oss.periods, NULL);
-	snd_assert(err >= 0, goto failure);
+	if (err < 0)
+		goto failure;
 
 	snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
 
@@ -1006,7 +1011,10 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
 
 	runtime->oss.periods = params_periods(sparams);
 	oss_period_size = snd_pcm_plug_client_size(substream, params_period_size(sparams));
-	snd_assert(oss_period_size >= 0, err = -EINVAL; goto failure);
+	if (oss_period_size < 0) {
+		err = -EINVAL;
+		goto failure;
+	}
 #ifdef CONFIG_SND_PCM_OSS_PLUGINS
 	if (runtime->oss.plugin_first) {
 		err = snd_pcm_plug_alloc(substream, oss_period_size);
@@ -1017,7 +1025,10 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
 	oss_period_size *= oss_frame_size;
 
 	oss_buffer_size = oss_period_size * runtime->oss.periods;
-	snd_assert(oss_buffer_size >= 0, err = -EINVAL; goto failure);
+	if (oss_buffer_size < 0) {
+		err = -EINVAL;
+		goto failure;
+	}
 
 	runtime->oss.period_bytes = oss_period_size;
 	runtime->oss.buffer_bytes = oss_buffer_size;
@@ -1069,7 +1080,8 @@ static int snd_pcm_oss_get_active_substream(struct snd_pcm_oss_file *pcm_oss_fil
 				return err;
 		}
 	}
-	snd_assert(asubstream != NULL, return -EIO);
+	if (!asubstream)
+		return -EIO;
 	if (r_substream)
 		*r_substream = asubstream;
 	return 0;
@@ -1764,7 +1776,8 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file)
 	err = snd_pcm_hw_refine(substream, params);
 	format_mask = *hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 
 	kfree(params);
-	snd_assert(err >= 0, return err);
+	if (err < 0)
+		return err;
 	for (fmt = 0; fmt < 32; ++fmt) {
 		if (snd_mask_test(&format_mask, fmt)) {
 			int f = snd_pcm_oss_format_to(fmt);
@@ -2250,7 +2263,8 @@ static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream,
 static int snd_pcm_oss_release_file(struct snd_pcm_oss_file *pcm_oss_file)
 {
 	int cidx;
-	snd_assert(pcm_oss_file != NULL, return -ENXIO);
+	if (!pcm_oss_file)
+		return 0;
 	for (cidx = 0; cidx < 2; ++cidx) {
 		struct snd_pcm_substream *substream = pcm_oss_file->streams[cidx];
 		if (substream)
@@ -2271,8 +2285,8 @@ static int snd_pcm_oss_open_file(struct file *file,
 	struct snd_pcm_substream *substream;
 	unsigned int f_mode = file->f_mode;
 
-	snd_assert(rpcm_oss_file != NULL, return -EINVAL);
-	*rpcm_oss_file = NULL;
+	if (rpcm_oss_file)
+		*rpcm_oss_file = NULL;
 
 	pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL);
 	if (pcm_oss_file == NULL)
@@ -2312,7 +2326,8 @@ static int snd_pcm_oss_open_file(struct file *file,
 	}
 
 	file->private_data = pcm_oss_file;
-	*rpcm_oss_file = pcm_oss_file;
+	if (rpcm_oss_file)
+		*rpcm_oss_file = pcm_oss_file;
 	return 0;
 }
 
@@ -2321,7 +2336,8 @@ static int snd_task_name(struct task_struct *task, char *name, size_t size)
 {
 	unsigned int idx;
 
-	snd_assert(task != NULL && name != NULL && size >= 2, return -EINVAL);
+	if (snd_BUG_ON(!task || !name || size < 2))
+		return -EINVAL;
 	for (idx = 0; idx < sizeof(task->comm) && idx + 1 < size; idx++)
 		name[idx] = task->comm[idx];
 	name[idx] = '\0';
@@ -2415,7 +2431,8 @@ static int snd_pcm_oss_release(struct inode *inode, struct file *file)
 	substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
 	if (substream == NULL)
 		substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_CAPTURE];
-	snd_assert(substream != NULL, return -ENXIO);
+	if (snd_BUG_ON(!substream))
+		return -ENXIO;
 	pcm = substream->pcm;
 	if (!pcm->card->shutdown)
 		snd_pcm_oss_sync(pcm_oss_file);
@@ -2448,7 +2465,8 @@ static long snd_pcm_oss_ioctl(struct file *file, unsigned int cmd, unsigned long
 			if (substream != NULL)
 				break;
 		}
-		snd_assert(substream != NULL, return -ENXIO);
+		if (snd_BUG_ON(idx >= 2))
+			return -ENXIO;
 		return snd_mixer_oss_ioctl_card(substream->pcm->card, cmd, arg);
 	}
 #endif
diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index bec9413..6751daa 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -62,7 +62,8 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
 	if ((width = snd_pcm_format_physical_width(format->format)) < 0)
 		return width;
 	size = frames * format->channels * width;
-	snd_assert((size % 8) == 0, return -ENXIO);
+	if (snd_BUG_ON(size % 8))
+		return -ENXIO;
 	size /= 8;
 	if (plugin->buf_frames < frames) {
 		vfree(plugin->buf);
@@ -84,7 +85,8 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
 			c->area.step = format->channels * width;
 		}
 	} else if (plugin->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {
-		snd_assert((size % format->channels) == 0,);
+		if (snd_BUG_ON(size % format->channels))
+			return -EINVAL;
 		size /= format->channels;
 		for (channel = 0; channel < format->channels; channel++, c++) {
 			c->frames = frames;
@@ -102,13 +104,15 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
 int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
 {
 	int err;
-	snd_assert(snd_pcm_plug_first(plug) != NULL, return -ENXIO);
+	if (snd_BUG_ON(!snd_pcm_plug_first(plug)))
+		return -ENXIO;
 	if (snd_pcm_plug_stream(plug) == SNDRV_PCM_STREAM_PLAYBACK) {
 		struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);
 		while (plugin->next) {
 			if (plugin->dst_frames)
 				frames = plugin->dst_frames(plugin, frames);
-			snd_assert(frames > 0, return -ENXIO);
+			if (snd_BUG_ON(frames <= 0))
+				return -ENXIO;
 			plugin = plugin->next;
 			err = snd_pcm_plugin_alloc(plugin, frames);
 			if (err < 0)
@@ -119,7 +123,8 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
 		while (plugin->prev) {
 			if (plugin->src_frames)
 				frames = plugin->src_frames(plugin, frames);
-			snd_assert(frames > 0, return -ENXIO);
+			if (snd_BUG_ON(frames <= 0))
+				return -ENXIO;
 			plugin = plugin->prev;
 			err = snd_pcm_plugin_alloc(plugin, frames);
 			if (err < 0)
@@ -148,8 +153,10 @@ int snd_pcm_plugin_build(struct snd_pcm_substream *plug,
 	struct snd_pcm_plugin *plugin;
 	unsigned int channels;
 	
-	snd_assert(plug != NULL, return -ENXIO);
-	snd_assert(src_format != NULL && dst_format != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plug))
+		return -ENXIO;
+	if (snd_BUG_ON(!src_format || !dst_format))
+		return -ENXIO;
 	plugin = kzalloc(sizeof(*plugin) + extra, GFP_KERNEL);
 	if (plugin == NULL)
 		return -ENOMEM;
@@ -159,10 +166,10 @@ int snd_pcm_plugin_build(struct snd_pcm_substream *plug,
 	plugin->access = SNDRV_PCM_ACCESS_RW_INTERLEAVED;
 	plugin->src_format = *src_format;
 	plugin->src_width = snd_pcm_format_physical_width(src_format->format);
-	snd_assert(plugin->src_width > 0, );
+	snd_BUG_ON(plugin->src_width <= 0);
 	plugin->dst_format = *dst_format;
 	plugin->dst_width = snd_pcm_format_physical_width(dst_format->format);
-	snd_assert(plugin->dst_width > 0, );
+	snd_BUG_ON(plugin->dst_width <= 0);
 	if (plugin->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		channels = src_format->channels;
 	else
@@ -194,7 +201,8 @@ snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *plug, snd_p
 	struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;
 	int stream = snd_pcm_plug_stream(plug);
 
-	snd_assert(plug != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plug))
+		return -ENXIO;
 	if (drv_frames == 0)
 		return 0;
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -224,7 +232,8 @@ snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *plug, snd_pc
 	snd_pcm_sframes_t frames;
 	int stream = snd_pcm_plug_stream(plug);
 	
-	snd_assert(plug != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plug))
+		return -ENXIO;
 	if (clt_frames == 0)
 		return 0;
 	frames = clt_frames;
@@ -540,7 +549,8 @@ snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(struct snd_pcm_substream *plu
 	int width, nchannels, channel;
 	int stream = snd_pcm_plug_stream(plug);
 
-	snd_assert(buf != NULL, return -ENXIO);
+	if (snd_BUG_ON(!buf))
+		return -ENXIO;
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		plugin = snd_pcm_plug_first(plug);
 		format = &plugin->src_format;
@@ -553,7 +563,9 @@ snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(struct snd_pcm_substream *plu
 	if ((width = snd_pcm_format_physical_width(format->format)) < 0)
 		return width;
 	nchannels = format->channels;
-	snd_assert(plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED || format->channels <= 1, return -ENXIO);
+	if (snd_BUG_ON(plugin->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&
+		       format->channels > 1))
+		return -ENXIO;
 	for (channel = 0; channel < nchannels; channel++, v++) {
 		v->frames = count;
 		v->enabled = 1;
diff --git a/sound/core/oss/rate.c b/sound/core/oss/rate.c
index 14dfb31..a466443 100644
--- a/sound/core/oss/rate.c
+++ b/sound/core/oss/rate.c
@@ -185,7 +185,8 @@ static snd_pcm_sframes_t rate_src_frames(struct snd_pcm_plugin *plugin, snd_pcm_
 	struct rate_priv *data;
 	snd_pcm_sframes_t res;
 
-	snd_assert(plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin))
+		return -ENXIO;
 	if (frames == 0)
 		return 0;
 	data = (struct rate_priv *)plugin->extra_data;
@@ -217,7 +218,8 @@ static snd_pcm_sframes_t rate_dst_frames(struct snd_pcm_plugin *plugin, snd_pcm_
 	struct rate_priv *data;
 	snd_pcm_sframes_t res;
 
-	snd_assert(plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin))
+		return -ENXIO;
 	if (frames == 0)
 		return 0;
 	data = (struct rate_priv *)plugin->extra_data;
@@ -252,19 +254,20 @@ static snd_pcm_sframes_t rate_transfer(struct snd_pcm_plugin *plugin,
 	snd_pcm_uframes_t dst_frames;
 	struct rate_priv *data;
 
-	snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+		return -ENXIO;
 	if (frames == 0)
 		return 0;
 #ifdef CONFIG_SND_DEBUG
 	{
 		unsigned int channel;
 		for (channel = 0; channel < plugin->src_format.channels; channel++) {
-			snd_assert(src_channels[channel].area.first % 8 == 0 &&
-				   src_channels[channel].area.step % 8 == 0,
-				   return -ENXIO);
-			snd_assert(dst_channels[channel].area.first % 8 == 0 &&
-				   dst_channels[channel].area.step % 8 == 0,
-				   return -ENXIO);
+			if (snd_BUG_ON(src_channels[channel].area.first % 8 ||
+				       src_channels[channel].area.step % 8))
+				return -ENXIO;
+			if (snd_BUG_ON(dst_channels[channel].area.first % 8 ||
+				       dst_channels[channel].area.step % 8))
+				return -ENXIO;
 		}
 	}
 #endif
@@ -281,7 +284,8 @@ static int rate_action(struct snd_pcm_plugin *plugin,
 		       enum snd_pcm_plugin_action action,
 		       unsigned long udata)
 {
-	snd_assert(plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin))
+		return -ENXIO;
 	switch (action) {
 	case INIT:
 	case PREPARE:
@@ -302,14 +306,20 @@ int snd_pcm_plugin_build_rate(struct snd_pcm_substream *plug,
 	struct rate_priv *data;
 	struct snd_pcm_plugin *plugin;
 
-	snd_assert(r_plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!r_plugin))
+		return -ENXIO;
 	*r_plugin = NULL;
 
-	snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
-	snd_assert(src_format->channels > 0, return -ENXIO);
-	snd_assert(src_format->format == SNDRV_PCM_FORMAT_S16, return -ENXIO);
-	snd_assert(dst_format->format == SNDRV_PCM_FORMAT_S16, return -ENXIO);
-	snd_assert(src_format->rate != dst_format->rate, return -ENXIO);
+	if (snd_BUG_ON(src_format->channels != dst_format->channels))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->channels <= 0))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->format != SNDRV_PCM_FORMAT_S16))
+		return -ENXIO;
+	if (snd_BUG_ON(dst_format->format != SNDRV_PCM_FORMAT_S16))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->rate == dst_format->rate))
+		return -ENXIO;
 
 	err = snd_pcm_plugin_build(plug, "rate conversion",
 				   src_format, dst_format,
diff --git a/sound/core/oss/route.c b/sound/core/oss/route.c
index da7ab7a..0dcc287 100644
--- a/sound/core/oss/route.c
+++ b/sound/core/oss/route.c
@@ -54,7 +54,8 @@ static snd_pcm_sframes_t route_transfer(struct snd_pcm_plugin *plugin,
 	struct snd_pcm_plugin_channel *dvp;
 	int format;
 
-	snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+		return -ENXIO;
 	if (frames == 0)
 		return 0;
 
@@ -90,10 +91,13 @@ int snd_pcm_plugin_build_route(struct snd_pcm_substream *plug,
 	struct snd_pcm_plugin *plugin;
 	int err;
 
-	snd_assert(r_plugin != NULL, return -ENXIO);
+	if (snd_BUG_ON(!r_plugin))
+		return -ENXIO;
 	*r_plugin = NULL;
-	snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
-	snd_assert(src_format->format == dst_format->format, return -ENXIO);
+	if (snd_BUG_ON(src_format->rate != dst_format->rate))
+		return -ENXIO;
+	if (snd_BUG_ON(src_format->format != dst_format->format))
+		return -ENXIO;
 
 	err = snd_pcm_plugin_build(plug, "route conversion",
 				   src_format, dst_format, 0, &plugin);