[ 045/184] ALSA: ac97 - Fix missing NULL check in

[Willy Tarreau]

2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------
 snd_ac97_cvol_new()

From: Takashi Iwai <tiwai@xxxxxxx>

commit 733a48e5ae5bf28b046fad984d458c747cbb8c21 upstream.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=44721

Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
 sound/pci/ac97/ac97_codec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 78288db..5f295f7 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -1252,6 +1252,8 @@ static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigne
 		tmp.index = ac97->num;
 		kctl = snd_ctl_new1(&tmp, ac97);
 	}
+	if (!kctl)
+		return -ENOMEM;
 	if (reg >= AC97_PHONE && reg <= AC97_PCM)
 		set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
 	else
-- 
1.7.12.2.21.g234cd45.dirty



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