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| author | Takashi Iwai <tiwai@suse.de> | 2013-02-04 10:28:15 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-02-04 10:28:15 +0100 |
| commit | edac894389f9c9de2a1368c78809c824b343f3a5 (patch) | |
| tree | 88c91a906d79a63a035a3dfe9bda2e167ef67890 /sound/drivers | |
| parent | 20608731f479d48be6bcb88e727f360ddf98ddaf (diff) | |
| download | blackbird-op-linux-edac894389f9c9de2a1368c78809c824b343f3a5.tar.gz blackbird-op-linux-edac894389f9c9de2a1368c78809c824b343f3a5.zip | |
ALSA: aloop: Fix Oops while PM resume
snd-aloop driver has no proper PM implementation, thus the PM resume
may trigger Oops due to leftover timer instance. This patch adds the
missing suspend/resume implementation.
Reported-and-tested-by: El boulangero <elboulangero@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/drivers')
| -rw-r--r-- | sound/drivers/aloop.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c index 3d822328d383..64d534710b51 100644 --- a/sound/drivers/aloop.c +++ b/sound/drivers/aloop.c @@ -286,12 +286,14 @@ static int loopback_trigger(struct snd_pcm_substream *substream, int cmd) loopback_active_notify(dpcm); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: spin_lock(&cable->lock); cable->pause |= stream; loopback_timer_stop(dpcm); spin_unlock(&cable->lock); break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: spin_lock(&cable->lock); dpcm->last_jiffies = jiffies; cable->pause &= ~stream; @@ -563,7 +565,8 @@ static snd_pcm_uframes_t loopback_pointer(struct snd_pcm_substream *substream) static struct snd_pcm_hardware loopback_pcm_hardware = { .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), + SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_RESUME), .formats = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE), |
