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

Kill snd_assert() in sound/isa/*, 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/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)