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Date: Thu, 2 Apr 2015 16:51:43 +0530 From: Sudip Mukherjee <sudipm.mukherjee@...il.com> To: Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de> Cc: alsa-devel@...a-project.org, linux-kernel@...r.kernel.org, Sudip Mukherjee <sudipm.mukherjee@...il.com> Subject: [PATCH] ALSA: hda: fix possible null dereference we are dereferencing pcm first then checking pcm. instead now lets put them in same if condition so that pcm is checked first. Signed-off-by: Sudip Mukherjee <sudip@...torindia.org> --- sound/pci/hda/hda_codec.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 145cae7..7df18e2 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -3717,9 +3717,8 @@ static int add_std_chmaps(struct hda_codec *codec) struct snd_pcm_chmap *chmap; const struct snd_pcm_chmap_elem *elem; - if (pcm->own_chmap) - continue; - if (!pcm || !hinfo->substreams) + if (!pcm || pcm->own_chmap || + !hinfo->substreams) continue; elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps; err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem, -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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