block: fix improper kobject release in blk_integrity_unregister

blk_integrity_unregister should use kobject_put to release the kobject,
otherwise after bi is freed, memory of bi->kobj->name is leaked.

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 73e28d3..15c6308 100644 (file)
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -379,6 +379,7 @@ void blk_integrity_unregister(struct gendisk *disk)
 
        kobject_uevent(&bi->kobj, KOBJ_REMOVE);
        kobject_del(&bi->kobj);
+       kobject_put(&bi->kobj);
        kmem_cache_free(integrity_cachep, bi);
        disk->integrity = NULL;
 }