dm clone: call kmem_cache_destroy() in dm_clone_init() error path

Otherwise the _hydration_cache will leak if dm_register_target() fails.

Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

diff --git a/drivers/md/dm-clone-target.c b/drivers/md/dm-clone-target.c
index f38a27604c7ab667c1ec9468760dc6d5730ad0cb..fc30ebd67622c7d97a6f7a9fcfb91d2bc70fa6a0 100644 (file)
--- a/drivers/md/dm-clone-target.c
+++ b/drivers/md/dm-clone-target.c
@@ -2205,6 +2205,7 @@ static int __init dm_clone_init(void)
        r = dm_register_target(&clone_target);
        if (r < 0) {
                DMERR("Failed to register clone target");
+               kmem_cache_destroy(_hydration_cache);
                return r;
        }