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>
diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c
index 97c2cac..8c7f237 100644
--- a/sound/soc/spear/spear_pcm.c
+++ b/sound/soc/spear/spear_pcm.c
@@ -138,7 +138,7 @@
continue;
buf = &substream->dma_buffer;
- if (!buf && !buf->area)
+ if (!buf || !buf->area)
continue;
dma_free_writecombine(pcm->card->dev, buf->bytes,