net_sched: return nla_nest_end() instead of skb->len

nla_nest_end() already has return skb->len, so replace
return skb->len with return nla_nest_end instead().
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/sch_atm.c

@@ -623,8 +623,7 @@ static int atm_tc_dump_class(struct Qdisc *sch, unsigned long cl,
 		if (nla_put_u32(skb, TCA_ATM_EXCESS, 0))
 			goto nla_put_failure;
 	}
-	nla_nest_end(skb, nest);
-	return skb->len;
+	return nla_nest_end(skb, nest);
 
 nla_put_failure:
 	nla_nest_cancel(skb, nest);

net/sched/sch_cbq.c

@@ -1563,8 +1563,7 @@ static int cbq_dump(struct Qdisc *sch, struct sk_buff *skb)
 		goto nla_put_failure;
 	if (cbq_dump_attr(skb, &q->link) < 0)
 		goto nla_put_failure;
-	nla_nest_end(skb, nest);
-	return skb->len;
+	return nla_nest_end(skb, nest);
 
 nla_put_failure:
 	nla_nest_cancel(skb, nest);
@@ -1599,8 +1598,7 @@ cbq_dump_class(struct Qdisc *sch, unsigned long arg,
 		goto nla_put_failure;
 	if (cbq_dump_attr(skb, cl) < 0)
 		goto nla_put_failure;
-	nla_nest_end(skb, nest);
-	return skb->len;
+	return nla_nest_end(skb, nest);
 
 nla_put_failure:
 	nla_nest_cancel(skb, nest);

net/sched/sch_fq.c

@@ -781,8 +781,7 @@ static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
 	    nla_put_u32(skb, TCA_FQ_BUCKETS_LOG, q->fq_trees_log))
 		goto nla_put_failure;
 
-	nla_nest_end(skb, opts);
-	return skb->len;
+	return nla_nest_end(skb, opts);
 
 nla_put_failure:
 	return -1;

net/sched/sch_fq_codel.c

@@ -450,8 +450,7 @@ static int fq_codel_dump(struct Qdisc *sch, struct sk_buff *skb)
 			q->flows_cnt))
 		goto nla_put_failure;
 
-	nla_nest_end(skb, opts);
-	return skb->len;
+	return nla_nest_end(skb, opts);
 
 nla_put_failure:
 	return -1;

net/sched/sch_hfsc.c

@@ -1353,8 +1353,7 @@ hfsc_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb,
 		goto nla_put_failure;
 	if (hfsc_dump_curves(skb, cl) < 0)
 		goto nla_put_failure;
-	nla_nest_end(skb, nest);
-	return skb->len;
+	return nla_nest_end(skb, nest);
 
  nla_put_failure:
 	nla_nest_cancel(skb, nest);

net/sched/sch_hhf.c

@@ -691,8 +691,7 @@ static int hhf_dump(struct Qdisc *sch, struct sk_buff *skb)
 	    nla_put_u32(skb, TCA_HHF_NON_HH_WEIGHT, q->hhf_non_hh_weight))
 		goto nla_put_failure;
 
-	nla_nest_end(skb, opts);
-	return skb->len;
+	return nla_nest_end(skb, opts);
 
 nla_put_failure:
 	return -1;

net/sched/sch_ingress.c

@@ -100,8 +100,7 @@ static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
 	nest = nla_nest_start(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
-	nla_nest_end(skb, nest);
-	return skb->len;
+	return nla_nest_end(skb, nest);
 
 nla_put_failure:
 	nla_nest_cancel(skb, nest);

net/sched/sch_tbf.c

@@ -475,8 +475,7 @@ static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
 	    nla_put_u64(skb, TCA_TBF_PRATE64, q->peak.rate_bytes_ps))
 		goto nla_put_failure;
 
-	nla_nest_end(skb, nest);
-	return skb->len;
+	return nla_nest_end(skb, nest);
 
 nla_put_failure:
 	nla_nest_cancel(skb, nest);