linux-kernel - [PATCH v2] thermal: Exynos: Deletion of unnecessary checks before two function calls

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Date:	Fri, 21 Nov 2014 17:17:26 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Eduardo Valentin <edubezval@...il.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Zhang Rui <rui.zhang@...el.com>, linux-pm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH v2] thermal: Exynos: Deletion of unnecessary checks before
 two function calls

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 21 Nov 2014 17:11:49 +0100

The functions cpufreq_cooling_unregister() and thermal_zone_device_unregister()
test whether their argument is NULL and then return 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/thermal/samsung/exynos_thermal_common.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_thermal_common.c b/drivers/thermal/samsung/exynos_thermal_common.c
index 3f5ad25..b6be572 100644
--- a/drivers/thermal/samsung/exynos_thermal_common.c
+++ b/drivers/thermal/samsung/exynos_thermal_common.c
@@ -417,13 +417,10 @@ void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf)
 
 	th_zone = sensor_conf->pzone_data;
 
-	if (th_zone->therm_dev)
-		thermal_zone_device_unregister(th_zone->therm_dev);
+	thermal_zone_device_unregister(th_zone->therm_dev);
 
-	for (i = 0; i < th_zone->cool_dev_size; i++) {
-		if (th_zone->cool_dev[i])
-			cpufreq_cooling_unregister(th_zone->cool_dev[i]);
-	}
+	for (i = 0; i < th_zone->cool_dev_size; ++i)
+		cpufreq_cooling_unregister(th_zone->cool_dev[i]);
 
 	dev_info(sensor_conf->dev,
 		"Exynos: Kernel Thermal management unregistered\n");
-- 
2.1.3

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