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>

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 94ae69f..d02ea89 100644 (file)
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -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) {