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

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Message-ID: <5638EF52.7030300@users.sourceforge.net>
Date:	Tue, 3 Nov 2015 18:30:58 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	"David S. Miller" <davem@...emloft.net>,
	Samuel Ortiz <samuel@...tiz.org>, netdev@...r.kernel.org
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] irda: Delete an unnecessary check before the function call
 "irlmp_unregister_service"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 3 Nov 2015 18:18:37 +0100

The irlmp_unregister_service() 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/irda/af_irda.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index fae6822..e6aa48b 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -2123,8 +2123,7 @@ static int irda_setsockopt(struct socket *sock, int level, int optname,
 		}
 
 		/* Unregister any old registration */
-		if (self->skey)
-			irlmp_unregister_service(self->skey);
+		irlmp_unregister_service(self->skey);
 
 		self->skey = irlmp_register_service((__u16) opt);
 		break;
-- 
2.6.2

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