linux-kernel - [PATCH] pwm: Delete an unnecessary check before the function call "of_node

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Date:	Tue, 03 Feb 2015 11:58:29 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Thierry Reding <thierry.reding@...il.com>,
	linux-pwm@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] pwm: Delete an unnecessary check before the function call
 "of_node_put"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 3 Feb 2015 11:54:28 +0100

The of_node_put() 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/pwm/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 966497d..810aef3 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -192,7 +192,7 @@ static void of_pwmchip_add(struct pwm_chip *chip)
 
 static void of_pwmchip_remove(struct pwm_chip *chip)
 {
-	if (chip->dev && chip->dev->of_node)
+	if (chip->dev)
 		of_node_put(chip->dev->of_node);
 }
 
-- 
2.2.2

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