net: ipv6: rpl_iptunnel: simplify the return expression of rpl_do_srh()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zheng Yongjun 2020-12-08 20:09:49 +08:00 committed by David S. Miller
parent 57b0637d00
commit 9faad250ce

View File

@ -190,18 +190,13 @@ static int rpl_do_srh(struct sk_buff *skb, const struct rpl_lwt *rlwt)
{ {
struct dst_entry *dst = skb_dst(skb); struct dst_entry *dst = skb_dst(skb);
struct rpl_iptunnel_encap *tinfo; struct rpl_iptunnel_encap *tinfo;
int err = 0;
if (skb->protocol != htons(ETH_P_IPV6)) if (skb->protocol != htons(ETH_P_IPV6))
return -EINVAL; return -EINVAL;
tinfo = rpl_encap_lwtunnel(dst->lwtstate); tinfo = rpl_encap_lwtunnel(dst->lwtstate);
err = rpl_do_srh_inline(skb, rlwt, tinfo->srh); return rpl_do_srh_inline(skb, rlwt, tinfo->srh);
if (err)
return err;
return 0;
} }
static int rpl_output(struct net *net, struct sock *sk, struct sk_buff *skb) static int rpl_output(struct net *net, struct sock *sk, struct sk_buff *skb)