linux-kernel - [PATCH] bq2415x_charger: Delete unnecessary checks before the function call "of_node

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Date:	Fri, 6 Nov 2015 16:56:33 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	David Woodhouse <dwmw2@...radead.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	Pali Rohár <pali.rohar@...il.com>,
	Sebastian Reichel <sre@...nel.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] bq2415x_charger: Delete unnecessary checks before the
 function call "of_node_put"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 6 Nov 2015 16:48:46 +0100

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

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/power/bq2415x_charger.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/power/bq2415x_charger.c b/drivers/power/bq2415x_charger.c
index 4afd768..27e8953 100644
--- a/drivers/power/bq2415x_charger.c
+++ b/drivers/power/bq2415x_charger.c
@@ -1704,7 +1704,7 @@ error_4:
 error_3:
 	bq2415x_power_supply_exit(bq);
 error_2:
-	if (bq && bq->notify_node)
+	if (bq)
 		of_node_put(bq->notify_node);
 	kfree(name);
 error_1:
@@ -1724,9 +1724,7 @@ static int bq2415x_remove(struct i2c_client *client)
 	if (bq->nb.notifier_call)
 		power_supply_unreg_notifier(&bq->nb);
 
-	if (bq->notify_node)
-		of_node_put(bq->notify_node);
-
+	of_node_put(bq->notify_node);
 	bq2415x_sysfs_exit(bq);
 	bq2415x_power_supply_exit(bq);
 
-- 
2.6.2

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