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

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Message-ID: <54D20EC9.8090105@users.sourceforge.net>
Date:	Wed, 04 Feb 2015 13:21:29 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Manish Chopra <manish.chopra@...gic.com>,
	Rajesh Borundia <rajesh.borundia@...gic.com>,
	Sony Chacko <sony.chacko@...gic.com>, netdev@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] netxen: Delete an unnecessary check before the function call
 "kfree"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 4 Feb 2015 13:17:48 +0100

The kfree() 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/net/ethernet/qlogic/netxen/netxen_nic_main.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index a47fe67..7d1b524 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -176,9 +176,7 @@ netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
 static void
 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
 {
-	if (recv_ctx->sds_rings != NULL)
-		kfree(recv_ctx->sds_rings);
-
+	kfree(recv_ctx->sds_rings);
 	recv_ctx->sds_rings = NULL;
 }
 
-- 
2.2.2

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