ip6_mutex_grp = lck_grp_alloc_init("ip6", ip6_mutex_grp_attr);
ip6_mutex_attr = lck_attr_alloc_init();
ip6_mutex_grp = lck_grp_alloc_init("ip6", ip6_mutex_grp_attr);
ip6_mutex_attr = lck_attr_alloc_init();
if ((ip6_mutex = lck_mtx_alloc_init(ip6_mutex_grp, ip6_mutex_attr)) == NULL) {
printf("ip6_init: can't alloc ip6_mutex\n");
if ((ip6_mutex = lck_mtx_alloc_init(ip6_mutex_grp, ip6_mutex_attr)) == NULL) {
printf("ip6_init: can't alloc ip6_mutex\n");