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-rw-r--r--fs/btrfs/inode.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index bda91f3100bd..1a527c7f383b 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4412,7 +4412,14 @@ static noinline int may_destroy_subvol(struct btrfs_root *root)
ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);
if (ret < 0)
goto out;
- BUG_ON(ret == 0);
+ if (ret == 0) {
+ /*
+ * Key with offset -1 found, there would have to exist a root
+ * with such id, but this is out of valid range.
+ */
+ ret = -EUCLEAN;
+ goto out;
+ }
ret = 0;
if (path->slots[0] > 0) {