diff options
| -rw-r--r-- | net/netfilter/nf_conntrack_netlink.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index ae156dff4887..76271a1301a5 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -1224,19 +1224,12 @@ ctnetlink_change_helper(struct nf_conn *ct, const struct nlattr * const cda[]) if (helper->from_nlattr && helpinfo) helper->from_nlattr(helpinfo, ct); return 0; - } - if (help->helper) + } else return -EBUSY; - /* need to zero data of old helper */ - memset(help->data, 0, help->helper->data_len); - } else { - /* we cannot set a helper for an existing conntrack */ - return -EOPNOTSUPP; } - rcu_assign_pointer(help->helper, helper); - - return 0; + /* we cannot set a helper for an existing conntrack */ + return -EOPNOTSUPP; } static inline int |