Commit 54160ef6 authored Dec 04, 2017 by Alexander Aring Committed by David S. Miller Dec 05, 2017

net: sched: sch_api: rearrange init handling



This patch fixes the following checkpatch error:

ERROR: do not use assignment in if condition

by rearranging the if condition to execute init callback only if init
callback exists. The whole setup afterwards is called in any case,
doesn't matter if init callback is set or not. This patch has the same
behaviour as before, just without assign err variable in if condition.
It also makes the code easier to read.

Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 0ac4bd68

net/sched/sch_api.c

+47 −41

Original line number	Diff line number	Diff line
		@@ -1060,7 +1060,12 @@ static struct Qdisc qdisc_create(struct net_device dev,
		netdev_info(dev, "Caught tx_queue_len zero misconfig\n");
		}

		if (!ops->init \|\| (err = ops->init(sch, tca[TCA_OPTIONS])) == 0) {
		if (ops->init) {
		err = ops->init(sch, tca[TCA_OPTIONS]);
		if (err != 0)
		goto err_out5;
		}

		if (qdisc_is_percpu_stats(sch)) {
		sch->cpu_bstats =
		netdev_alloc_pcpu_stats(struct gnet_stats_basic_cpu);
		@@ -1107,7 +1112,8 @@ static struct Qdisc qdisc_create(struct net_device dev,
		qdisc_hash_add(sch, false);

		return sch;
		}

		err_out5:
		/* ops->init() failed, we call ->destroy() like qdisc_create_dflt() */
		if (ops->destroy)
		ops->destroy(sch);