Since we cannot make sure the 'params->num_regs' will always be none zero here, and then if it equals to zero, the kmemdup() will return ZERO_SIZE_PTR, which equals to ((void *)16).

So this patch fix this with just doing the zero check before calling kmemdup().

Signed-off-by: Xiubo Li Li.Xiubo@freescale.com --- sound/soc/soc-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 7b5a7ce..263514a 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3051,7 +3051,7 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, unsigned int val, mask; void *data;

- if (!component->regmap) + if (!component->regmap || !params->num_regs) return -EINVAL;

len = params->num_regs * component->val_bytes;