diff --git a/drivers/md/md.c b/drivers/md/md.c
index 2166af8a76546d43f6739dadbcfd4e23779bf4c1..58bee2366ea8eaf8a11602cb2aec7f3677e19d99 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3862,6 +3862,8 @@ static int md_alloc(dev_t dev, char *name)
 			if (mddev2->gendisk &&
 			    strcmp(mddev2->gendisk->disk_name, name) == 0) {
 				spin_unlock(&all_mddevs_lock);
+				mutex_unlock(&disks_mutex);
+				mddev_put(mddev);
 				return -EEXIST;
 			}
 		spin_unlock(&all_mddevs_lock);