netem: cleanup dump code

Use nla_put_nested to update netlink attribute value.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 6 deletions

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 64f0d3293b49..d367783f6920 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -562,8 +562,7 @@ static void netem_destroy(struct Qdisc *sch)
 static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
 {
         const struct netem_sched_data *q = qdisc_priv(sch);
-        unsigned char *b = skb_tail_pointer(skb);
-        struct nlattr *nla = (struct nlattr *) b;
+        struct nlattr *nla = (struct nlattr *) skb_tail_pointer(skb);
         struct tc_netem_qopt qopt;
         struct tc_netem_corr cor;
         struct tc_netem_reorder reorder;
@@ -590,12 +589,10 @@ static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
         corrupt.correlation = q->corrupt_cor.rho;
         NLA_PUT(skb, TCA_NETEM_CORRUPT, sizeof(corrupt), &corrupt);
 
-        nla->nla_len = skb_tail_pointer(skb) - b;
-
-        return skb->len;
+        return nla_nest_end(skb, nla);
 
 nla_put_failure:
-        nlmsg_trim(skb, b);
+        nlmsg_trim(skb, nla);
         return -1;
 }