NF_CT_ASSERT(master_help);
write_lock_bh(&nf_conntrack_lock);
+ if (!master_help->helper) {
+ ret = -ESHUTDOWN;
+ goto out;
+ }
list_for_each_entry(i, &nf_conntrack_expect_list, list) {
if (expect_matches(i, expect)) {
/* Refresh timer: if it's dying, ignore.. */