Btrfs: fix that error value is changed by mistake

In iterate_inodes_from_logical() the error result from
extent_from_logical() is patched by mistake. Typically ENOENT is
patched to EINVAL because (-ENOENT & BTRFS_EXTENT_FLAG_TREE_BLOCK)
evaluates to true.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index a256f3b..ff6475f 100644 (file)
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1438,10 +1438,10 @@ int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info,
        ret = extent_from_logical(fs_info, logical, path,
                                        &found_key);
        btrfs_release_path(path);
-       if (ret & BTRFS_EXTENT_FLAG_TREE_BLOCK)
-               ret = -EINVAL;
        if (ret < 0)
                return ret;
+       if (ret & BTRFS_EXTENT_FLAG_TREE_BLOCK)
+               return -EINVAL;
 
        extent_item_pos = logical - found_key.objectid;
        ret = iterate_extent_inodes(fs_info, found_key.objectid,