This is a note to let you know that I've just added the patch titled
ALSA: aloop: Fix Oops while PM resume
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-aloop-fix-oops-while-pm-resume.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From bc32ef0a6d6a6e1a4745101f2678a2ca1f3eb8fe Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@xxxxxxx>
Date: Mon, 4 Feb 2013 10:28:15 +0100
Subject: ALSA: aloop: Fix Oops while PM resume
From: Takashi Iwai <tiwai@xxxxxxx>
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 <elboulangero@xxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Weng Meiling <wengmeiling.weng@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/drivers/aloop.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -287,12 +287,14 @@ static int loopback_trigger(struct snd_p
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;
@@ -552,7 +554,8 @@ static snd_pcm_uframes_t loopback_pointe
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),
Patches currently in stable-queue which might be from tiwai@xxxxxxx are
queue-3.4/alsa-aloop-fix-oops-while-pm-resume.patch
queue-3.4/alsa-usb-add-quirk-for-192khz-recording-on-e-mu-devices.patch
queue-3.4/alsa-hda-add-conexant-cx20751-2-3-4-codec-support.patch
queue-3.4/revert-alsa-hda-shut-up-pins-at-power-saving-mode-with-conexnat-codecs.patch
queue-3.4/alsa-hda-fix-non-snoop-page-handling.patch
queue-3.4/alsa-hda-always-turn-on-pins-for-hdmi-dp.patch
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