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>
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 @@
 	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 @@
 	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 @@
 	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 @@
 		       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 @@
 	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,