Commit 4939c660 authored Jan 28, 2008 by Takashi Iwai Committed by Jaroslav Kysela Jan 31, 2008

[ALSA] Fix Oops with PCM OSS sync

The PCM OSS emulation can cause Oops at sync operation due to the wrong
data size calculation.  Typically happening on Sparc64:
	http://lkml.org/lkml/2008/1/24/426



Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

parent ce875f07

sound/core/oss/pcm_oss.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1621,6 +1621,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
		snd_pcm_format_set_silence(runtime->format,
		runtime->oss.buffer,
		size1);
		size1 /= runtime->channels; /* frames */
		fs = snd_enter_user();
		snd_pcm_lib_write(substream, (void __user *)runtime->oss.buffer, size1);
		snd_leave_user(fs);