diff --git a/drivers/md/md.c b/drivers/md/md.c
index afaf36b2f6ab..71d221601bf8 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5620,6 +5620,7 @@ struct mddev *md_alloc(dev_t dev, char *name)
 	 * removed (mddev_delayed_delete).
 	 */
 	flush_workqueue(md_misc_wq);
+	flush_workqueue(md_rdev_misc_wq);
 
 	mutex_lock(&disks_mutex);
 	mddev = mddev_alloc(dev);