3.5.7.7 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Takashi Iwai <ti...@suse.de>
commit edac894389f9c9de2a1368c78809c824b343f3a5 upstream.
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 <elboulang...@gmail.com>
Signed-off-by: Takashi Iwai <ti...@suse.de>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
sound/drivers/aloop.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index c5d463c..1d84692 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -289,12 +289,14 @@ 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;
spin_unlock(&cable->lock);
loopback_timer_stop(dpcm);
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
spin_lock(&cable->lock);
dpcm->last_jiffies = jiffies;
cable->pause &= ~stream;
@@ -560,7 +562,8 @@ 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),
--
1.8.1.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
