From patchwork Sat Nov 22 15:26:37 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SF Markus Elfring X-Patchwork-Id: 413303 X-Patchwork-Delegate: scottwood@freescale.com Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3432814012F for ; Sun, 23 Nov 2014 02:33:17 +1100 (AEDT) Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by lists.ozlabs.org (Postfix) with ESMTP id 207EB1A1F45 for ; Sun, 23 Nov 2014 02:33:17 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org X-Greylist: delayed 334 seconds by postgrey-1.35 at bilbo; Sun, 23 Nov 2014 02:32:48 AEDT Received: from mout.web.de (mout.web.de [212.227.15.14]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 2BC1A1A09BF for ; Sun, 23 Nov 2014 02:32:48 +1100 (AEDT) Received: from [192.168.1.2] ([78.53.183.185]) by smtp.web.de (mrweb002) with ESMTPSA (Nemesis) id 0MDgTO-1XipRR2oMo-00HAgD; Sat, 22 Nov 2014 16:26:55 +0100 Message-ID: <5470AB2D.705@users.sourceforge.net> Date: Sat, 22 Nov 2014 16:26:37 +0100 From: SF Markus Elfring User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Benjamin Herrenschmidt , Kumar Gala , Michael Ellerman , Paul Mackerras , Scott Wood , linuxppc-dev@lists.ozlabs.org Subject: [PATCH 1/1] PowerPC-83xx: Deletion of an unnecessary check before the function call "of_node_put" References: <5307CAA2.8060406@users.sourceforge.net> <530A086E.8010901@users.sourceforge.net> <530A72AA.3000601@users.sourceforge.net> <530B5FB6.6010207@users.sourceforge.net> <530C5E18.1020800@users.sourceforge.net> <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.sourceforge.net> In-Reply-To: <5317A59D.4@users.sourceforge.net> X-Provags-ID: V03:K0:CreDny1L4cJgIYc3XzQntnZ2nQG7/NzegJtWMetiJ95ThAENmjU RH6I9LCw+76rP7yCJ9LUnqmRg8tOxBpQFEFiaqsS+gdW3Yv2AGDmIrl8Cs/aTfdzmxOVuiX CJB1oQDTB0GcdvpcYbWCphIW9DF9Nr8rTVTkS6ncPdEJg5yyAXbneyeEzj0eYAGJZvG65W1 6CTi/2wTpu8m4A7IdmWxw== X-UI-Out-Filterresults: notjunk:1; Cc: Julia Lawall , kernel-janitors@vger.kernel.org, LKML X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Markus Elfring 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 --- 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);