ASoC: rt5514-spi: Fix potential NULL pointer dereference
authorGustavo A. R. Silva <gustavo@embeddedor.com>
Tue, 15 Jan 2019 17:57:23 +0000 (11:57 -0600)
committerMark Brown <broonie@kernel.org>
Tue, 15 Jan 2019 19:03:49 +0000 (19:03 +0000)
commit060d0bf491874daece47053c4e1fb0489eb867d2
tree7c0b90d23cafd6c32e3caf6c2dc0e708caa3f2f5
parente581e151e965bf1f2815dd94620b638fec4d0a7e
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>
sound/soc/codecs/rt5514-spi.c