diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index a775984..f75d165 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -1178,7 +1178,7 @@
 	long count1, result;
 	struct snd_rawmidi_runtime *runtime = substream->runtime;
 
-	if (snd_BUG_ON(!kernelbuf && !userbuf))
+	if (!kernelbuf && !userbuf)
 		return -EINVAL;
 	if (snd_BUG_ON(!runtime->buffer))
 		return -EINVAL;