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ALSA: hda - Add sanity check for storing the user-defined pin configs 

Check whether the given NID is a pin widget before storing the
user-defined pin configs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2009-12-27 11:24:56 +01:00
parent a4e09aa3cf
commit b82855a0d7
1 changed files with 3 additions and 0 deletions
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3
sound/pci/hda/hda_codec.c
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@ -824,6 +824,9 @@ int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
struct hda_pincfg *pin;
unsigned int oldcfg;
if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
return -EINVAL;
oldcfg = snd_hda_codec_get_pincfg(codec, nid);
pin = look_up_pincfg(codec, list, nid);
if (!pin) {