bcache: Fix a minor memory leak on device teardown

Reported-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Kent Overstreet <koverstreet@google.com>

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index f47ecb5cb318be7f830691b406b6cddd3d348a91..5fa3cd2d9ff0ea3c6470a0fdeed98398c480ee47 100644 (file)
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -64,9 +64,11 @@ struct workqueue_struct *bcache_wq;
 
 static void bio_split_pool_free(struct bio_split_pool *p)
 {
+       if (p->bio_split_hook)
+               mempool_destroy(p->bio_split_hook);
+
        if (p->bio_split)
                bioset_free(p->bio_split);
-
 }
 
 static int bio_split_pool_init(struct bio_split_pool *p)