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

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Message-ID: <55955471.9000501@users.sourceforge.net>
Date:	Thu, 02 Jul 2015 17:10:41 +0200
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	"David S. Miller" <davem@...emloft.net>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	Julian Anastasov <ja@....bg>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	Patrick McHardy <kaber@...sh.net>,
	Simon Horman <horms@...ge.net.au>,
	Wensong Zhang <wensong@...ux-vs.org>, netdev@...r.kernel.org,
	lvs-devel@...r.kernel.org, netfilter-devel@...r.kernel.org,
	coreteam@...filter.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] net-ipvs: Delete an unnecessary check before the function
 call "module_put"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 2 Jul 2015 17:00:14 +0200

The module_put() 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/netfilter/ipvs/ip_vs_sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/ipvs/ip_vs_sched.c b/net/netfilter/ipvs/ip_vs_sched.c
index 199760c..e50221b 100644
--- a/net/netfilter/ipvs/ip_vs_sched.c
+++ b/net/netfilter/ipvs/ip_vs_sched.c
@@ -137,7 +137,7 @@ struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name)
 
 void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler)
 {
-	if (scheduler && scheduler->module)
+	if (scheduler)
 		module_put(scheduler->module);
 }
 
-- 
2.4.5

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