diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 7cd62307cd417..3381389ab93a7 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -2254,7 +2254,10 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
 		device = btrfs_scan_one_device(vol->name, BLK_OPEN_READ, false);
 		if (IS_ERR_OR_NULL(device)) {
 			mutex_unlock(&uuid_mutex);
-			ret = PTR_ERR(device);
+			if (IS_ERR(device))
+				ret = PTR_ERR(device);
+			else
+				ret = 0;
 			break;
 		}
 		ret = !(device->fs_devices->num_devices ==