btrfs: simplify lookup_data_extent()

After returning if ret <= 0 we know that ret > 0. No need to check it.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Anand Jain <anand.jain>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d00b515..0173d30 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -546,15 +546,12 @@ static int lookup_data_extent(struct btrfs_root *root, struct btrfs_path *path,
        /* Error or we're already at the file extent */
        if (ret <= 0)
                return ret;
-       if (ret > 0) {
-               /* Check previous file extent */
-               ret = btrfs_previous_item(root, path, ino,
-                                         BTRFS_EXTENT_DATA_KEY);
-               if (ret < 0)
-                       return ret;
-               if (ret > 0)
-                       goto check_next;
-       }
+       /* Check previous file extent */
+       ret = btrfs_previous_item(root, path, ino, BTRFS_EXTENT_DATA_KEY);
+       if (ret < 0)
+               return ret;
+       if (ret > 0)
+               goto check_next;
        /* Now the key.offset must be smaller than @file_offset */
        btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]);
        if (key.objectid != ino ||