linux-kernel - [PATCH] PM / devfreq: Remove unnecessary NULL check before kfree

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Message-ID: <20171112082739.GA20464@embeddedor.com>
Date:   Sun, 12 Nov 2017 02:27:39 -0600
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH] PM / devfreq: Remove unnecessary NULL check before kfree

NULL check before freeing functions like kfree is not needed.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
 drivers/devfreq/devfreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 78fb496..21164a9 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -672,8 +672,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
 
 	device_unregister(&devfreq->dev);
 err_dev:
-	if (devfreq)
-		kfree(devfreq);
+	kfree(devfreq);
 err_out:
 	return ERR_PTR(err);
 }
-- 
2.7.4