Commit cc85f7a6 authored by Takashi Iwai's avatar Takashi Iwai

ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check

NULL user-space buffer can be passed even in a normal path, thus it's
not good to spew a kernel warning with stack trace at each time.
Just drop snd_BUG_ON() macro usage there.

BugLink: http://lkml.kernel.org/r/CACT4Y+YfVJ3L+q0i-4vyQVyyPD7V=OMX0PWPi29x9Bo3QaBLdw@mail.gmail.comReported-by: default avatarDmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 2d1b5c08
...@@ -1178,7 +1178,7 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream, ...@@ -1178,7 +1178,7 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
long count1, result; long count1, result;
struct snd_rawmidi_runtime *runtime = substream->runtime; struct snd_rawmidi_runtime *runtime = substream->runtime;
if (snd_BUG_ON(!kernelbuf && !userbuf)) if (!kernelbuf && !userbuf)
return -EINVAL; return -EINVAL;
if (snd_BUG_ON(!runtime->buffer)) if (snd_BUG_ON(!runtime->buffer))
return -EINVAL; return -EINVAL;
......
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