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authorGustavo A. R. Silva <gustavo@embeddedor.com>2019-01-15 20:57:23 +0300
committerMark Brown <broonie@kernel.org>2019-01-15 22:03:49 +0300
commit060d0bf491874daece47053c4e1fb0489eb867d2 (patch)
tree7c0b90d23cafd6c32e3caf6c2dc0e708caa3f2f5 /sound
parente581e151e965bf1f2815dd94620b638fec4d0a7e (diff)
downloadlinux-060d0bf491874daece47053c4e1fb0489eb867d2.tar.xz
ASoC: rt5514-spi: Fix potential NULL pointer dereference
There is a potential NULL pointer dereference in case devm_kzalloc() fails and returns NULL. Fix this by adding a NULL check on rt5514_dsp. This issue was detected with the help of Coccinelle. Fixes: 6eebf35b0e4a ("ASoC: rt5514: add rt5514 SPI driver") Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/rt5514-spi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c
index 4d46f4567c3a..bec2eefa8b0f 100644
--- a/sound/soc/codecs/rt5514-spi.c
+++ b/sound/soc/codecs/rt5514-spi.c
@@ -280,6 +280,8 @@ static int rt5514_spi_pcm_probe(struct snd_soc_component *component)
rt5514_dsp = devm_kzalloc(component->dev, sizeof(*rt5514_dsp),
GFP_KERNEL);
+ if (!rt5514_dsp)
+ return -ENOMEM;
rt5514_dsp->dev = &rt5514_spi->dev;
mutex_init(&rt5514_dsp->dma_lock);