linux-kernel - [tip:sched/core] sched/core: Remove unnecessary NULL-pointer check

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Message-ID: <tip-0e6d2a67a41321b3ef650b780a279a37855de08e@git.kernel.org>
Date:	Thu, 18 Aug 2016 03:56:31 -0700
From:	tip-bot for Morten Rasmussen <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	hpa@...or.com, peterz@...radead.org, linux-kernel@...r.kernel.org,
	efault@....de, tglx@...utronix.de, morten.rasmussen@....com,
	mingo@...nel.org, torvalds@...ux-foundation.org
Subject: [tip:sched/core] sched/core: Remove unnecessary NULL-pointer check

Commit-ID:  0e6d2a67a41321b3ef650b780a279a37855de08e
Gitweb:     http://git.kernel.org/tip/0e6d2a67a41321b3ef650b780a279a37855de08e
Author:     Morten Rasmussen <morten.rasmussen@....com>
AuthorDate: Mon, 25 Jul 2016 14:34:21 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 18 Aug 2016 11:26:53 +0200

sched/core: Remove unnecessary NULL-pointer check

Checking if the sched_domain pointer returned by sd_init() is NULL seems
pointless as sd_init() neither checks if it is valid to begin with nor
set it to NULL.

Signed-off-by: Morten Rasmussen <morten.rasmussen@....com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Mike Galbraith <efault@....de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: dietmar.eggemann@....com
Cc: freedom.tan@...iatek.com
Cc: keita.kobayashi.ym@...esas.com
Cc: mgalbraith@...e.de
Cc: sgurrappadi@...dia.com
Cc: vincent.guittot@...aro.org
Cc: yuyang.du@...el.com
Link: http://lkml.kernel.org/r/1469453670-2660-5-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/sched/core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 54fff81..1b2dd52 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6854,8 +6854,6 @@ struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl,
 		struct sched_domain *child, int cpu)
 {
 	struct sched_domain *sd = sd_init(tl, cpu);
-	if (!sd)
-		return child;
 
 	cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu));
 	if (child) {