diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 49c0f18cb7834992316a7e45bd383f962c6880f8..d8616e6ebd92bfbd21087aab4b93959492a3d821 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1738,6 +1738,7 @@ EXPORT_SYMBOL(blk_stop_queue);
 void blk_sync_queue(struct request_queue *q)
 {
 	del_timer_sync(&q->unplug_timer);
+	kblockd_flush_work(&q->unplug_work);
 }
 EXPORT_SYMBOL(blk_sync_queue);