in6_update_ifa
if ((error = in6_update_ifa(ifp, ifra, ia)) != 0)
if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0) {
if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0) {
int in6_update_ifa (struct ifnet *, struct in6_aliasreq *,
if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0) {
if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0)