combine-diff: convert diff_tree_combined to struct object_id

diff --git a/builtin/diff.c b/builtin/diff.c
index b2d7c32cdb401ae9097c0b2af14bf5f99b0999a0..73b4ff3db28d5653e0d0dd2d8d60bbf3ca4c6748 100644 (file)
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -194,7 +194,7 @@ static int builtin_diff_combined(struct rev_info *revs,
                revs->dense_combined_merges = revs->combine_merges = 1;
        for (i = 1; i < ents; i++)
                oid_array_append(&parents, &ent[i].item->oid);
-       diff_tree_combined(ent[0].item->oid.hash, &parents,
+       diff_tree_combined(&ent[0].item->oid, &parents,
                           revs->dense_combined_merges, revs);
        oid_array_clear(&parents);
        return 0;