diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index d6c24c8ad749..a8ec8539cd8d 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4668,11 +4668,10 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
 		}
 
 		ret = btrfs_previous_item(root, path, 0, key.type);
-		if (ret)
-			mutex_unlock(&fs_info->delete_unused_bgs_mutex);
-		if (ret < 0)
-			goto done;
 		if (ret) {
+			mutex_unlock(&fs_info->delete_unused_bgs_mutex);
+			if (ret < 0)
+				goto done;
 			ret = 0;
 			btrfs_release_path(path);
 			break;