From: Lydia Wang lydiawang@viatech.com.cn Subject: ALSA: VIA HDA: Fix notify_aa_path_ctls() invalid issue.

In notify_aa_path_ctls(), adds 'rear mic' item and confirms the A-A path control existing before notifying card that the A-A path volume is muted if smart5.1 is enabled.

Signed-off-by: Lydia Wang lydiawang@viatech.com.cn Index: sound-2.6/sound/pci/hda/patch_via.c =================================================================== --- sound-2.6.orig/sound/pci/hda/patch_via.c 2011-04-28 14:26:11.000000000 +0800 +++ sound-2.6/sound/pci/hda/patch_via.c 2011-04-28 14:44:14.000000000 +0800 @@ -844,14 +844,18 @@ { int i; struct snd_ctl_elem_id id; - const char *labels[] = {"Mic", "Front Mic", "Line"}; + const char *labels[] = {"Mic", "Front Mic", "Line", "Rear Mic"}; + struct snd_kcontrol *ctl;

memset(&id, 0, sizeof(id)); id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; for (i = 0; i < ARRAY_SIZE(labels); i++) { sprintf(id.name, "%s Playback Volume", labels[i]); - snd_ctl_notify(codec->bus->card, SNDRV_CTL_EVENT_MASK_VALUE, - &id); + ctl = snd_hda_find_mixer_ctl(codec, id.name); + if (ctl) + snd_ctl_notify(codec->bus->card, + SNDRV_CTL_EVENT_MASK_VALUE, + &ctl->id); } }