btrfs: remove a useless return statement in btrfs_block_rsv_add

Since ret must be 0 here, don't have to return.  No functional change
and code readability is not hurt.

Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2661671..8e4a858 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5539,10 +5539,8 @@ int btrfs_block_rsv_add(struct btrfs_root *root,
                return 0;
 
        ret = reserve_metadata_bytes(root, block_rsv, num_bytes, flush);
-       if (!ret) {
+       if (!ret)
                block_rsv_add_bytes(block_rsv, num_bytes, true);
-               return 0;
-       }
 
        return ret;
 }