net: sched: cls_cgroup need tcf_exts_init in all cases

This ensures the tcf_exts_init() is called for all cases.

Fixes: 952313bd62589cae216a57 ("net: sched: cls_cgroup use RCU")
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/cls_cgroup.c

@@ -116,12 +116,11 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb,
 	if (!new)
 		return -ENOBUFS;
 
-	if (head) {
+	tcf_exts_init(&new->exts, TCA_CGROUP_ACT, TCA_CGROUP_POLICE);
+	if (head)
 		new->handle = head->handle;
-	} else {
-		tcf_exts_init(&new->exts, TCA_CGROUP_ACT, TCA_CGROUP_POLICE);
+	else
 		new->handle = handle;
-	}
 
 	new->tp = tp;
 	err = nla_parse_nested(tb, TCA_CGROUP_MAX, tca[TCA_OPTIONS],