ALSA: pcm - Fix unbalanced pm_qos_request

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

The pm_qos_request isn't freed properly when OSS PCM emulation is used
because it skips snd_pcm_hw_free() call but directly releases the
stream. This resulted in Oops later.

Tested-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Takashi Iwai 15 years ago 8699a0b6 147fcf1c

1 changed file

expand all

sound

core

pcm_native.c

sound/core/pcm_native.c

··· 1992 1992 substream->ops->close(substream); 1993 1993 substream->hw_opened = 0; 1994 1994 } 1995 + if (pm_qos_request_active(&substream->latency_pm_qos_req)) 1996 + pm_qos_remove_request(&substream->latency_pm_qos_req); 1995 1997 if (substream->pcm_release) { 1996 1998 substream->pcm_release(substream); 1997 1999 substream->pcm_release = NULL;