linux-kernel - [PATCH] cpufreq-dt: Delete an unnecessary check before the function call "cpufreq_cooling

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Message-ID: <54D112A3.1050507@users.sourceforge.net>
Date:	Tue, 03 Feb 2015 19:25:39 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	linux-pm@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] cpufreq-dt: Delete an unnecessary check before the function
 call "cpufreq_cooling_unregister"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 3 Feb 2015 19:21:21 +0100

The cpufreq_cooling_unregister() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/cpufreq/cpufreq-dt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index fde97d6..bab67db 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -320,8 +320,7 @@ static int cpufreq_exit(struct cpufreq_policy *policy)
 {
 	struct private_data *priv = policy->driver_data;
 
-	if (priv->cdev)
-		cpufreq_cooling_unregister(priv->cdev);
+	cpufreq_cooling_unregister(priv->cdev);
 	dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);
 	of_free_opp_table(priv->cpu_dev);
 	clk_put(policy->clk);
-- 
2.2.2

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