net: sched: cls: use nla_nest_cancel instead of nlmsg_trim
To cancel nesting, this function is more convenient.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 741bfa7..221697a 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -177,7 +177,6 @@
struct sk_buff *skb, struct tcmsg *t)
{
struct cls_cgroup_head *head = rtnl_dereference(tp->root);
- unsigned char *b = skb_tail_pointer(skb);
struct nlattr *nest;
t->tcm_handle = head->handle;
@@ -198,7 +197,7 @@
return skb->len;
nla_put_failure:
- nlmsg_trim(skb, b);
+ nla_nest_cancel(skb, nest);
return -1;
}