From 728deecdd4e9b4a58faf518638169c743c57cee2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 11:39:23 +0100
Subject: ALSA: hda - Fix possible NULL dereference in snd_hda_get_pin_label()

Fix a possible NULL access of indexp in fill_audio_out_name() called
from snd_hda_get_pin_label().

Spotted by coverity CID 402035.

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

diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c
index 48a9d00..853c6a6 100644
--- a/sound/pci/hda/hda_auto_parser.c
+++ b/sound/pci/hda/hda_auto_parser.c
@@ -638,7 +638,7 @@ static int fill_audio_out_name(struct hda_codec *codec, hda_nid_t nid,
 			/* don't add channel suffix for Headphone controls */
 			int idx = get_hp_label_index(codec, nid, cfg->hp_pins,
 						     cfg->hp_outs);
-			if (idx >= 0)
+			if (idx >= 0 && indexp)
 				*indexp = idx;
 			sfx = "";
 		}
-- 
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