linux-kernel - [PATCH 1/1] PowerPC-83xx: Deletion of an unnecessary check before the function call "of_node

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Message-ID: <5470AB2D.705@users.sourceforge.net>
Date:	Sat, 22 Nov 2014 16:26:37 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Kumar Gala <galak@...nel.crashing.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Paul Mackerras <paulus@...ba.org>,
	Scott Wood <scottwood@...escale.com>,
	linuxppc-dev@...ts.ozlabs.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/1] PowerPC-83xx: Deletion of an unnecessary check before
 the function call "of_node_put"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 22 Nov 2014 16:18:20 +0100

The of_node_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>
---
 arch/powerpc/platforms/83xx/usb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c
index 1ad748b..5c31d82 100644
--- a/arch/powerpc/platforms/83xx/usb.c
+++ b/arch/powerpc/platforms/83xx/usb.c
@@ -162,8 +162,7 @@ int mpc831x_usb_cfg(void)
 
 	iounmap(immap);
 
-	if (immr_node)
-		of_node_put(immr_node);
+	of_node_put(immr_node);
 
 	/* Map USB SOC space */
 	ret = of_address_to_resource(np, 0, &res);
-- 
2.1.3

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