1 files changed, 3 insertions, 0 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index 7b63c9b6333d..996ed906d8ca 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1062,6 +1062,9 @@ void __blk_put_request(struct request_queue *q, struct request *req)
 
         elv_completed_request(q, req);
 
+        /* this is a bio leak */
+        WARN_ON(req->bio != NULL);
+
         /*
          * Request may not have originated from ll_rw_blk. if not,
          * it didn't come out of our reserved rq pools