Commits
paulhsia committed f5cdc9d4003
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>