| commit | f5cdc9d4003a2f66ea57b3edd3e04acc2b1a4439 | [log] [tgz] |
|---|---|---|
| author | paulhsia <paulhsia@chromium.org> | Wed Nov 13 01:17:14 2019 +0800 |
| committer | Takashi Iwai <tiwai@suse.de> | Wed Nov 13 10:51:36 2019 +0100 |
| tree | a17360281ab0a47bf58eb41881fc1367a2b8395c | |
| parent | 528699317dd6dc722dccc11b68800cf945109390 [diff] |
ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed() If the nullity check for `substream->runtime` is outside of the lock region, it is possible to have a null runtime in the critical section if snd_pcm_detach_substream is called right before the lock. Signed-off-by: paulhsia <paulhsia@chromium.org> Link: https://lore.kernel.org/r/20191112171715.128727-2-paulhsia@chromium.org Signed-off-by: Takashi Iwai <tiwai@suse.de>