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| author | Prasad Joshi <prasadjoshi.linux@gmail.com> | 2012-08-31 08:55:21 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-08-31 14:24:52 -0700 |
| commit | fd4fb262b31ecb06bf93defb036e72b33ddf0200 (patch) | |
| tree | 1649a8e8ab2e7fb5ac43f8ebcfe04e732cae9d42 | |
| parent | c921928661eda599d73a6a86e58bdd5aecfa18cb (diff) | |
| download | linux-fd4fb262b31ecb06bf93defb036e72b33ddf0200.tar.gz linux-fd4fb262b31ecb06bf93defb036e72b33ddf0200.tar.bz2 linux-fd4fb262b31ecb06bf93defb036e72b33ddf0200.zip | |
ASoC: spear: correct the check for NULL dma_buffer pointer
The if condition
if (!buf && !buf->area)
checks if the buf pointer is NULL and then dereferences it again to
check if the buffer area is NULL, resulting in possible NULL
dereference.
Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| -rw-r--r-- | sound/soc/spear/spear_pcm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c index 97c2cac8e92c..8c7f23729446 100644 --- a/sound/soc/spear/spear_pcm.c +++ b/sound/soc/spear/spear_pcm.c @@ -138,7 +138,7 @@ static void spear_pcm_free(struct snd_pcm *pcm) continue; buf = &substream->dma_buffer; - if (!buf && !buf->area) + if (!buf || !buf->area) continue; dma_free_writecombine(pcm->card->dev, buf->bytes, |