From: Jiri Pirko Date: Thu, 9 Feb 2017 13:39:00 +0000 (+0100) Subject: sched: check negative err value to safe one level of indent X-Git-Tag: Ubuntu-5.0.0-8.9~5457^2~157^2 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=40c81b25b16cd871afe70630c131bd2544848d1f;p=mirror_ubuntu-disco-kernel.git sched: check negative err value to safe one level of indent As it is more common, check err for !0. That allows to safe one level of indentation and makes the code easier to read. Also, make 'next' variable global in function as it is used twice. Signed-off-by: Jiri Pirko Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 48864ad2322d..abe1fe13ae54 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -214,6 +214,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n) struct Qdisc *q; struct tcf_proto __rcu **back; struct tcf_proto __rcu **chain; + struct tcf_proto *next; struct tcf_proto *tp; const struct Qdisc_class_ops *cops; unsigned long cl; @@ -355,10 +356,8 @@ replay: if (fh == 0) { if (n->nlmsg_type == RTM_DELTFILTER && t->tcm_handle == 0) { - struct tcf_proto *next = rtnl_dereference(tp->next); - + next = rtnl_dereference(tp->next); RCU_INIT_POINTER(*back, next); - tfilter_notify(net, skb, n, tp, fh, RTM_DELTFILTER, false); tcf_proto_destroy(tp, true); @@ -383,16 +382,13 @@ replay: break; case RTM_DELTFILTER: err = tp->ops->delete(tp, fh); - if (err == 0) { - struct tcf_proto *next = rtnl_dereference(tp->next); - - tfilter_notify(net, skb, n, tp, - t->tcm_handle, - RTM_DELTFILTER, false); - if (tcf_proto_destroy(tp, false)) - RCU_INIT_POINTER(*back, next); - } - goto errout; + if (err) + goto errout; + next = rtnl_dereference(tp->next); + tfilter_notify(net, skb, n, tp, t->tcm_handle, + RTM_DELTFILTER, false); + if (tcf_proto_destroy(tp, false)) + RCU_INIT_POINTER(*back, next); case RTM_GETTFILTER: err = tfilter_notify(net, skb, n, tp, fh, RTM_NEWTFILTER, true);