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

commit 6827af4a9a9f5bb664c42abf7c11af4978d72201 upstream.

Otherwise the _hydration_cache will leak if dm_register_target() fails.

Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/md/dm-clone-target.c b/drivers/md/dm-clone-target.c
index ce9d03f4e9813d7b23567b959a30071cb8e6c170..355afca2969dc8021c1dab649f290a17e7e3df27 100644 (file)
--- a/drivers/md/dm-clone-target.c
+++ b/drivers/md/dm-clone-target.c
@@ -2232,6 +2232,7 @@ 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;
        }