pkt_sched: Stop using NLA_PUT*().

These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index 6b7fe4a..c218987 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -260,7 +260,8 @@
 	nest = nla_nest_start(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
-	NLA_PUT_U32(skb, TCA_DRR_QUANTUM, cl->quantum);
+	if (nla_put_u32(skb, TCA_DRR_QUANTUM, cl->quantum))
+		goto nla_put_failure;
 	return nla_nest_end(skb, nest);
 
 nla_put_failure: