11972 resync smatch

*** 4851,4861 ****
          mac_group_t *s_group = (mac_group_t *)ring->mr_gh;
          int rv;
  
          ASSERT(MAC_PERIM_HELD((mac_handle_t)mip));
          ASSERT(d_group != NULL);
!         ASSERT(s_group->mrg_mh == d_group->mrg_mh);
  
          if (s_group == d_group)
                  return (0);
  
          /*
--- 4851,4861 ----
          mac_group_t *s_group = (mac_group_t *)ring->mr_gh;
          int rv;
  
          ASSERT(MAC_PERIM_HELD((mac_handle_t)mip));
          ASSERT(d_group != NULL);
!         ASSERT(s_group == NULL || s_group->mrg_mh == d_group->mrg_mh);
  
          if (s_group == d_group)
                  return (0);
  
          /*