diff --git a/drivers/md/md.c b/drivers/md/md.c
index 6e82df21623d..35b895813c88 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6238,11 +6238,11 @@ static void mddev_detach(struct mddev *mddev)
 static void __md_stop(struct mddev *mddev)
 {
 	struct md_personality *pers = mddev->pers;
-	md_bitmap_destroy(mddev);
 	mddev_detach(mddev);
 	/* Ensure ->event_work is done */
 	if (mddev->event_work.func)
 		flush_workqueue(md_misc_wq);
+	md_bitmap_destroy(mddev);
 	spin_lock(&mddev->lock);
 	mddev->pers = NULL;
 	spin_unlock(&mddev->lock);