diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 974d832e54a62635c08b21c98a72fe25963b09a6..c3fedd265d184b2408de14ce5fd7d83653026c07 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1964,6 +1964,8 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
 			else
 				err = "device busy";
 			mutex_unlock(&bch_register_lock);
+			if (!IS_ERR(bdev))
+				bdput(bdev);
 			if (attr == &ksysfs_register_quiet)
 				goto out;
 		}