The following commit has been merged in the linux branch: commit ad87c64f00e01a694bf90bddc2b4a6c90796d13c Author: Takashi Iwai tiwai@suse.de Date: Mon Nov 2 14:23:15 2009 +0100

ALSA: hda - Don't check invalid HP pin

alc_automute_pin() might be called even if any HP pin is defined, and it will result in verbs with NID=0.

This patch adds a check for the validity of HP widget before issuing any verbs.

Signed-off-by: Takashi Iwai tiwai@suse.de

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 148734d..ff20048 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -965,6 +965,8 @@ static void alc_automute_pin(struct hda_codec *codec) unsigned int nid = spec->autocfg.hp_pins[0]; int i;

+ if (!nid) + return; pincap = snd_hda_query_pin_caps(codec, nid); if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */ snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0);