diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index ee3826db193dafa91027b0636988db7f877a1b67..3113184f4d99c0110d49625be65e4081c5beba01 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -77,6 +77,7 @@ static int max_queued_requests = 1024;
 
 static void allow_barrier(struct r1conf *conf, sector_t sector_nr);
 static void lower_barrier(struct r1conf *conf, sector_t sector_nr);
+static void raid1_free(struct mddev *mddev, void *priv);
 
 #define raid1_log(md, fmt, args...)				\
 	do { if ((md)->queue) blk_add_trace_msg((md)->queue, "raid1 " fmt, ##args); } while (0)
@@ -3148,6 +3149,8 @@ static int raid1_run(struct mddev *mddev)
 	 */
 	if (conf->raid_disks - mddev->degraded < 1) {
 		md_unregister_thread(&conf->thread);
+		if (!mddev->private)
+			raid1_free(mddev, conf);
 		return -EINVAL;
 	}