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/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 @@
 	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 @@
 	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);