libbtrfsutil: fix test assumptions about top-level subvolume

[platform/upstream/btrfs-progs.git] / root-tree.c

diff --git a/root-tree.c b/root-tree.c
index ab01a14..6b8f8c1 100644 (file)
--- a/root-tree.c
+++ b/root-tree.c
@@ -51,7 +51,8 @@ int btrfs_find_last_root(struct btrfs_root *root, u64 objectid,
        l = path->nodes[0];
        slot = path->slots[0] - 1;
        btrfs_item_key_to_cpu(l, &found_key, slot);
-       if (found_key.objectid != objectid) {
+       if (found_key.type != BTRFS_ROOT_ITEM_KEY ||
+           found_key.objectid != objectid) {
                ret = -ENOENT;
                goto out;
        }