use xcalloc() to allocate zero-initialized memory

diff --git a/list-objects.c b/list-objects.c
index b2db6ba0d3dcae4af3e738600de3275d4c03a079..3595ee7a22c4d6099ea9b995ffe1c61c60bb77cd 100644 (file)
--- a/list-objects.c
+++ b/list-objects.c
@@ -165,15 +165,17 @@ void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge)
                }
                mark_edge_parents_uninteresting(commit, revs, show_edge);
        }
-       for (i = 0; i < revs->cmdline.nr; i++) {
-               struct object *obj = revs->cmdline.rev[i].item;
-               struct commit *commit = (struct commit *)obj;
-               if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING))
-                       continue;
-               mark_tree_uninteresting(commit->tree);
-               if (revs->edge_hint && !(obj->flags & SHOWN)) {
-                       obj->flags |= SHOWN;
-                       show_edge(commit);
+       if (revs->edge_hint) {
+               for (i = 0; i < revs->cmdline.nr; i++) {
+                       struct object *obj = revs->cmdline.rev[i].item;
+                       struct commit *commit = (struct commit *)obj;
+                       if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING))
+                               continue;
+                       mark_tree_uninteresting(commit->tree);
+                       if (!(obj->flags & SHOWN)) {
+                               obj->flags |= SHOWN;
+                               show_edge(commit);
+                       }
                }
        }
 }