[PATCH 2/6] btrfs: remove set but not used variable err in btrfs_add_link

[Johannes Thumshirn <jthumshirn@suse.de>]

err holds the return value of either btrfs_del_root_ref() or
btrfs_del_inode_ref() but it hasn't been checked since it's introduction with
commit fe66a05a0679 (Btrfs: improve error handling for btrfs_insert_dir_item
callers) in 2012.

As the error value hasn't been of any interest for 6 years we can just drop it
as well.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 fs/btrfs/inode.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 7d17b0a654e6..57af243b3f59 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6427,17 +6427,16 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
 fail_dir_item:
 	if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
 		u64 local_index;
-		int err;
-		err = btrfs_del_root_ref(trans, key.objectid,
-					 root->root_key.objectid, parent_ino,
-					 &local_index, name, name_len);
+
+		btrfs_del_root_ref(trans, key.objectid,
+				   root->root_key.objectid, parent_ino,
+				   &local_index, name, name_len);
 
 	} else if (add_backref) {
 		u64 local_index;
-		int err;
 
-		err = btrfs_del_inode_ref(trans, root, name, name_len,
-					  ino, parent_ino, &local_index);
+		btrfs_del_inode_ref(trans, root, name, name_len,
+				    ino, parent_ino, &local_index);
 	}
 	return ret;
 }
-- 
2.16.4