} else if (all) {
                int i;
 
-               for (i = 0; i < nr_objs; i++)
-                       printf("%s %s\n", sha1_to_hex(objs[i]->sha1),
-                                       get_rev_name(objs[i]));
+               for (i = 0; i < obj_allocs; i++)
+                       if (objs[i])
+                               printf("%s %s\n", sha1_to_hex(objs[i]->sha1),
+                                               get_rev_name(objs[i]));
        } else
                for ( ; revs; revs = revs->next)
                        printf("%s %s\n", revs->name, get_rev_name(revs->item));