From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 14 Aug 2007 13:15:52 +0000 (+0200)
Subject: [ALSA] hda-intel - Fix NULL dereference in resume
X-Git-Tag: v2.6.24-rc1~832^2~178
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d99f312629802f4c45306ee07618ee4978b4adc;p=linux-2.6

[ALSA] hda-intel - Fix NULL dereference in resume

codec->patch_ops.init can be NULL.  Check before calling it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
---

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index efd56a3396..fc1ddf408b 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1677,7 +1677,8 @@ static void hda_call_codec_resume(struct hda_codec *codec)
 	if (codec->patch_ops.resume)
 		codec->patch_ops.resume(codec);
 	else {
-		codec->patch_ops.init(codec);
+		if (codec->patch_ops.init)
+			codec->patch_ops.init(codec);
 		snd_hda_codec_resume_amp(codec);
 		snd_hda_codec_resume_cache(codec);
 	}