From: Xiubo Li Date: Sun, 28 Sep 2014 09:29:37 +0000 (+0800) Subject: ASoC: core: fix possible ZERO_SIZE_PTR pointer dereferencing error. X-Git-Tag: fixes-for-v3.18-merge-window~52^2~1^2^3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6596aa047b624aeec2ea321962cfdecf9953a383;p=pandora-kernel.git ASoC: core: fix possible ZERO_SIZE_PTR pointer dereferencing error. 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 Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- Reading git-diff-tree failed