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ALSA: hda - Fix no NID error with VIA codecs 

The via driver spews warnigs like
	hda-codec: no NID for mapping control Independent HP:0:0
with some codecs because snd_hda_add_nid() is called with nid=0.
This patch fixes it by skipping the call when no corresponding widget
is found.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-06-17 14:23:46 +02:00
parent cf6f1ff17f
commit ad2409413d
1 changed files with 7 additions and 4 deletions
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11
sound/pci/hda/patch_via.c
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@ -832,10 +832,13 @@ static int via_hp_build(struct hda_codec *codec)
knew->subdevice = HDA_SUBDEV_NID_FLAG | nid;
knew->private_value = nid;
knew = via_clone_control(spec, &via_hp_mixer[1]);
if (knew == NULL)
return -ENOMEM;
knew->subdevice = side_mute_channel(spec);
nid = side_mute_channel(spec);
if (nid) {
knew = via_clone_control(spec, &via_hp_mixer[1]);
if (knew == NULL)
return -ENOMEM;
knew->subdevice = nid;
}
return 0;
}