netdev - [PATCH 1/2] mISDN: Delete an unnecessary check before the function call "kfree

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Message-ID: <5649A5CF.3090403@users.sourceforge.net>
Date:	Mon, 16 Nov 2015 10:45:51 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Karsten Keil <isdn@...ux-pingi.de>, netdev@...r.kernel.org
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/2] mISDN: Delete an unnecessary check before the function
 call "kfree_skb"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 16 Nov 2015 10:10:53 +0100

The kfree_skb() 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/isdn/mISDN/socket.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
index 0d29b5a..edd16ef 100644
--- a/drivers/isdn/mISDN/socket.c
+++ b/drivers/isdn/mISDN/socket.c
@@ -236,8 +236,7 @@ mISDN_sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 	}
 
 done:
-	if (skb)
-		kfree_skb(skb);
+	kfree_skb(skb);
 	release_sock(sk);
 	return err;
 }
-- 
2.6.2

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