the scheduled ieee80211 softmac removal

[linux-2.6] / net / sched / act_nat.c

diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index be007bb31b59be92c09388eca2de1910e2ebb025..0a3c8339767a9f71fe3011da3267af2b6b634391 100644 (file)
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -40,20 +40,27 @@ static struct tcf_hashinfo nat_hash_info = {
        .lock   =       &nat_lock,
 };
 
+static const struct nla_policy nat_policy[TCA_NAT_MAX + 1] = {
+       [TCA_NAT_PARMS] = { .len = sizeof(struct tc_nat) },
+};
+
 static int tcf_nat_init(struct nlattr *nla, struct nlattr *est,
                        struct tc_action *a, int ovr, int bind)
 {
        struct nlattr *tb[TCA_NAT_MAX + 1];
        struct tc_nat *parm;
-       int ret = 0;
+       int ret = 0, err;
        struct tcf_nat *p;
        struct tcf_common *pc;
 
-       if (nla == NULL || nla_parse_nested(tb, TCA_NAT_MAX, nla, NULL) < 0)
+       if (nla == NULL)
                return -EINVAL;
 
-       if (tb[TCA_NAT_PARMS] == NULL ||
-           nla_len(tb[TCA_NAT_PARMS]) < sizeof(*parm))
+       err = nla_parse_nested(tb, TCA_NAT_MAX, nla, nat_policy);
+       if (err < 0)
+               return err;
+
+       if (tb[TCA_NAT_PARMS] == NULL)
                return -EINVAL;
        parm = nla_data(tb[TCA_NAT_PARMS]);