linux-kernel - [PATCH] cpufreq: Drop unnecessary check from cpufreq_policy

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Date:   Wed, 31 Aug 2016 03:11:31 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux PM list <linux-pm@...r.kernel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH] cpufreq: Drop unnecessary check from cpufreq_policy_alloc()

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Since cpufreq_policy_alloc() doesn't use its dev variable for
anything useful, drop that variable from there along with the
NULL check against it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/cpufreq/cpufreq.c |    4 ----
 1 file changed, 4 deletions(-)

Index: linux-pm/drivers/cpufreq/cpufreq.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/cpufreq.c
+++ linux-pm/drivers/cpufreq/cpufreq.c
@@ -1073,13 +1073,9 @@ static void handle_update(struct work_st
 
 static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu)
 {
-	struct device *dev = get_cpu_device(cpu);
 	struct cpufreq_policy *policy;
 	int ret;
 
-	if (WARN_ON(!dev))
-		return NULL;
-
 	policy = kzalloc(sizeof(*policy), GFP_KERNEL);
 	if (!policy)
 		return NULL;