diff options
| author | Wu Fengguang <wfg@linux.intel.com> | 2009-01-09 16:45:24 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-01-09 09:58:47 +0100 |
| commit | 5a9e02e94989323c2a7102e2fc80ee9102b19fa0 (patch) | |
| tree | e6f5d2ecd8928a5b0256f4c9f8f7c7963d1f8e36 /sound/pci/hda/patch_realtek.c | |
| parent | 57d139278e6c246d78f71e4bf0e0d15bb0390646 (diff) | |
ALSA: hda - create hda_codec.control_mutex for kcontrol->private_value
Fix the following lockdep warning by not reusing the hda_codec.spdif_mutex.
ALSA sound/pci/hda/hda_codec.c:882: hda_codec_cleanup_stream: NID=0x2
=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.28-next-20090102 #33
-------------------------------------------------------
mplayer/3151 is trying to acquire lock:
(&pcm->open_mutex){--..}, at: [<ffffffffa004ced3>] snd_pcm_release+0x43/0xd0 [snd_pcm]
but task is already holding lock:
(&mm->mmap_sem){----}, at: [<ffffffff810c0252>] sys_munmap+0x42/0x80
which lock already depends on the new lock.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_realtek.c')
| -rw-r--r-- | sound/pci/hda/patch_realtek.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index e8ec7417352..aa86a158450 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1502,11 +1502,11 @@ static int alc_cap_vol_info(struct snd_kcontrol *kcontrol, struct alc_spec *spec = codec->spec; int err; - mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */ + mutex_lock(&codec->control_mutex); kcontrol->private_value = HDA_COMPOSE_AMP_VAL(spec->adc_nids[0], 3, 0, HDA_INPUT); err = snd_hda_mixer_amp_volume_info(kcontrol, uinfo); - mutex_unlock(&codec->spdif_mutex); /* reuse spdif_mutex */ + mutex_unlock(&codec->control_mutex); return err; } @@ -1517,11 +1517,11 @@ static int alc_cap_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, struct alc_spec *spec = codec->spec; int err; - mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */ + mutex_lock(&codec->control_mutex); kcontrol->private_value = HDA_COMPOSE_AMP_VAL(spec->adc_nids[0], 3, 0, HDA_INPUT); err = snd_hda_mixer_amp_tlv(kcontrol, op_flag, size, tlv); - mutex_unlock(&codec->spdif_mutex); /* reuse spdif_mutex */ + mutex_unlock(&codec->control_mutex); return err; } @@ -1537,11 +1537,11 @@ static int alc_cap_getput_caller(struct snd_kcontrol *kcontrol, unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); int err; - mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */ + mutex_lock(&codec->control_mutex); kcontrol->private_value = HDA_COMPOSE_AMP_VAL(spec->adc_nids[adc_idx], 3, 0, HDA_INPUT); err = func(kcontrol, ucontrol); - mutex_unlock(&codec->spdif_mutex); /* reuse spdif_mutex */ + mutex_unlock(&codec->control_mutex); return err; } |