protocol: introduce enum protocol_version value protocol_v2

diff --git a/merge.c b/merge.c
index b0cffe16fe368ee86e609d5d9fbd3b29620bba8c..e5d796c9f2d110bdcd378b361fe2052ac1dcc266 100644 (file)
--- a/merge.c
+++ b/merge.c
@@ -53,11 +53,11 @@ int checkout_fast_forward(const struct object_id *head,
        struct tree_desc t[MAX_UNPACK_TREES];
        int i, nr_trees = 0;
        struct dir_struct dir;
-       struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
+       struct lock_file lock_file = LOCK_INIT;
 
        refresh_cache(REFRESH_QUIET);
 
-       if (hold_locked_index(lock_file, LOCK_REPORT_ON_ERROR) < 0)
+       if (hold_locked_index(&lock_file, LOCK_REPORT_ON_ERROR) < 0)
                return -1;
 
        memset(&trees, 0, sizeof(trees));
@@ -79,10 +79,10 @@ int checkout_fast_forward(const struct object_id *head,
        opts.fn = twoway_merge;
        setup_unpack_trees_porcelain(&opts, "merge");
 
-       trees[nr_trees] = parse_tree_indirect(head->hash);
+       trees[nr_trees] = parse_tree_indirect(head);
        if (!trees[nr_trees++])
                return -1;
-       trees[nr_trees] = parse_tree_indirect(remote->hash);
+       trees[nr_trees] = parse_tree_indirect(remote);
        if (!trees[nr_trees++])
                return -1;
        for (i = 0; i < nr_trees; i++) {
@@ -91,9 +91,7 @@ int checkout_fast_forward(const struct object_id *head,
        }
        if (unpack_trees(nr_trees, t, &opts))
                return -1;
-       if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) {
-               rollback_lock_file(lock_file);
+       if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
                return error(_("unable to write new index file"));
-       }
        return 0;
 }