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| author | Takashi Iwai <tiwai@suse.de> | 2008-07-17 23:37:20 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-07-18 11:59:40 +0200 |
| commit | 82af6bc0986c5140efc875b2d91326031f0254ab (patch) | |
| tree | bb6124529c7f0c5489205beb3bb031eeaf40f5f3 | |
| parent | 2522d7359301efadfb5744ebd3c623c3af4a7b30 (diff) | |
| download | op-kernel-dev-82af6bc0986c5140efc875b2d91326031f0254ab.zip op-kernel-dev-82af6bc0986c5140efc875b2d91326031f0254ab.tar.gz | |
ALSA: opti93x - Fix NULL dereference
Probing non-existing device causes Oops with snd-opti93x driver
due to NULL access in the destructor of the error path.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Rene Herman <rene.herman@gmail.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | sound/isa/opti9xx/opti92x-ad1848.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c index 41c047e..d20abb2 100644 --- a/sound/isa/opti9xx/opti92x-ad1848.c +++ b/sound/isa/opti9xx/opti92x-ad1848.c @@ -688,7 +688,7 @@ static void snd_card_opti9xx_free(struct snd_card *card) if (chip) { #ifdef OPTi93X struct snd_cs4231 *codec = chip->codec; - if (codec->irq > 0) { + if (codec && codec->irq > 0) { disable_irq(codec->irq); free_irq(codec->irq, codec); } |
