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authorTakashi Iwai <tiwai@suse.de>2008-01-28 23:53:41 +0100
committerJaroslav Kysela <perex@perex.cz>2008-01-31 17:30:20 +0100
commit4939c660341d1439b8c70c3e006e7fc182f5111e (patch)
tree53a58cd398fed99ca24ce1f243955a3e024ba6d9 /sound/core
parentce875f079efcfdcf693de89c7ab0ca7f71a9bdce (diff)
downloadlinux-4939c660341d1439b8c70c3e006e7fc182f5111e.tar.gz
[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>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/oss/pcm_oss.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 092c2d84a9b..4c601b192dd 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -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);