linux-kernel - [PATCH] net: dsa: Delete an unnecessary check before the function call "put

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Message-ID: <56476B8C.7020309@users.sourceforge.net>
Date:	Sat, 14 Nov 2015 18:12:44 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] net: dsa: Delete an unnecessary check before the function
 call "put_device"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 14 Nov 2015 17:58:00 +0100

The put_device() 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>
---
 net/dsa/dsa.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 1eba07f..045d776 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -671,8 +671,7 @@ static void dsa_of_free_platform_data(struct dsa_platform_data *pd)
 		kfree(pd->chip[i].rtable);
 
 		/* Drop our reference to the MDIO bus device */
-		if (pd->chip[i].host_dev)
-			put_device(pd->chip[i].host_dev);
+		put_device(pd->chip[i].host_dev);
 	}
 	kfree(pd->chip);
 }
-- 
2.6.2

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