dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path

commit 6b79a428c02769f2a11f8ae76bf866226d134887 upstream.

Otherwise the journal_io_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-integrity.c b/drivers/md/dm-integrity.c
index 53f9f765df9fd1437466df2111f1b750679dbc98..a2b8f8781a99ff35612b4bb9072776d1500c3892 100644 (file)
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -4646,11 +4646,13 @@ static int __init dm_integrity_init(void)
        }
 
        r = dm_register_target(&integrity_target);
-
-       if (r < 0)
+       if (r < 0) {
                DMERR("register failed %d", r);
+               kmem_cache_destroy(journal_io_cache);
+               return r;
+       }
 
-       return r;
+       return 0;
 }
 
 static void __exit dm_integrity_exit(void)