[NET_SCHED]: Use NLA_PUT_STRING for string dumping

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 1269334..ecda51d 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -257,7 +257,7 @@
 	NLA_PUT(skb, TCA_IPT_INDEX, 4, &ipt->tcf_index);
 	NLA_PUT(skb, TCA_IPT_HOOK, 4, &ipt->tcfi_hook);
 	NLA_PUT(skb, TCA_IPT_CNT, sizeof(struct tc_cnt), &c);
-	NLA_PUT(skb, TCA_IPT_TABLE, IFNAMSIZ, ipt->tcfi_tname);
+	NLA_PUT_STRING(skb, TCA_IPT_TABLE, ipt->tcfi_tname);
 	tm.install = jiffies_to_clock_t(jiffies - ipt->tcf_tm.install);
 	tm.lastuse = jiffies_to_clock_t(jiffies - ipt->tcf_tm.lastuse);
 	tm.expires = jiffies_to_clock_t(ipt->tcf_tm.expires);