dm cache: fix error return code in cache_create
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Fri, 10 May 2013 13:37:14 +0000 (14:37 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Fri, 10 May 2013 13:37:14 +0000 (14:37 +0100)
commitfa4d683af3693863bec761e2761a07e4c1351f86
tree3f3045ed3325ba54673177fb9e4f95892471b252
parentd793e684277124d55c5d2444007e224635821346
dm cache: fix error return code in cache_create

Return -ENOMEM if memory allocation fails in cache_create
instead of 0 (to avoid NULL pointer dereference).

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: stable@vger.kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm-cache-target.c