3.13.11.9 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Xiubo Li <[email protected]> commit 6596aa047b624aeec2ea321962cfdecf9953a383 upstream. 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 <[email protected]> Signed-off-by: Mark Brown <[email protected]> [ kamal: backport to 3.13-stable: context ] Signed-off-by: Kamal Mostafa <[email protected]> --- 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 a66783e..a3830d1 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3236,7 +3236,7 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, unsigned int val; void *data; - if (!codec->using_regmap) + if (!codec->using_regmap || !params->num_regs) return -EINVAL; len = params->num_regs * codec->val_bytes; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
