3.16.62-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Shenghui Wang shhuiw@foxmail.com
commit c7cd55504a5b0fc826a2cd9540845979d24ae542 upstream.
Commit 7e6358d244e47 ("dm: fix various targets to dm_register_target after module __init resources created") inadvertently introduced this bug when it moved dm_register_target() after the call to KMEM_CACHE().
Fixes: 7e6358d244e47 ("dm: fix various targets to dm_register_target after module __init resources created") Signed-off-by: Shenghui Wang shhuiw@foxmail.com Signed-off-by: Mike Snitzer snitzer@redhat.com Signed-off-by: Ben Hutchings ben@decadent.org.uk --- drivers/md/dm-cache-target.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -3109,14 +3109,13 @@ static int __init dm_cache_init(void) int r;
migration_cache = KMEM_CACHE(dm_cache_migration, 0); - if (!migration_cache) { - dm_unregister_target(&cache_target); + if (!migration_cache) return -ENOMEM; - }
r = dm_register_target(&cache_target); if (r) { DMERR("cache target registration failed: %d", r); + kmem_cache_destroy(migration_cache); return r; }