Since we cannot make sure the 'reg_size' will always be none zero here, and then if 'reg_size' equals to zero, the kzalloc() will return ZERO_SIZE_PTR, which equals to ((void *)16).

So this patch fix this with just doing the 'reg_size' zero check before calling kzalloc().

Signed-off-by: Xiubo Li Li.Xiubo@freescale.com --- sound/soc/soc-cache.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c index 3fa77d5..8fff5b6 100644 --- a/sound/soc/soc-cache.c +++ b/sound/soc/soc-cache.c @@ -72,6 +72,9 @@ int snd_soc_cache_init(struct snd_soc_codec *codec)

reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;

+ if (!reg_size) + return -EINVAL; + mutex_init(&codec->cache_rw_mutex);

dev_dbg(codec->dev, "ASoC: Initializing cache for %s codec\n",