From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Date: Thu, 15 Aug 2013 03:17:03 +0000 Subject: Re: [PATCH 10/29] drivers/watchdog/nuc900_wdt.c: simplify use of devm_ioremap_resource Message-Id: <520C482F.5090806@roeck-us.net> List-Id: References: <1376471493-22215-1-git-send-email-Julia.Lawall@lip6.fr> <1376471493-22215-11-git-send-email-Julia.Lawall@lip6.fr> In-Reply-To: <1376471493-22215-11-git-send-email-Julia.Lawall@lip6.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On 08/14/2013 02:11 AM, Julia Lawall wrote: > From: Julia Lawall > > Remove unneeded error handling on the result of a call to > platform_get_resource when the value is passed to devm_ioremap_resource. > > A simplified version of the semantic patch that makes this change is as > follows: (http://coccinelle.lip6.fr/) > > // > @@ > expression pdev,res,n,e,e1; > expression ret != 0; > identifier l; > @@ > > - res = platform_get_resource(pdev, IORESOURCE_MEM, n); > ... when != res > - if (res = NULL) { ... \(goto l;\|return ret;\) } > ... when != res > + res = platform_get_resource(pdev, IORESOURCE_MEM, n); > e = devm_ioremap_resource(e1, res); > // > > Signed-off-by: Julia Lawall > Reviewed-by: Guenter Roeck From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.active-venture.com ([67.228.131.205]:56852 "EHLO mail.active-venture.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759977Ab3HODRD (ORCPT ); Wed, 14 Aug 2013 23:17:03 -0400 Message-ID: <520C482F.5090806@roeck-us.net> Date: Wed, 14 Aug 2013 20:17:03 -0700 From: Guenter Roeck MIME-Version: 1.0 To: Julia Lawall CC: Wan ZongShun , kernel-janitors@vger.kernel.org, Wim Van Sebroeck , linux-arm-kernel@lists.infradead.org, linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 10/29] drivers/watchdog/nuc900_wdt.c: simplify use of devm_ioremap_resource References: <1376471493-22215-1-git-send-email-Julia.Lawall@lip6.fr> <1376471493-22215-11-git-send-email-Julia.Lawall@lip6.fr> In-Reply-To: <1376471493-22215-11-git-send-email-Julia.Lawall@lip6.fr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-watchdog-owner@vger.kernel.org List-Id: linux-watchdog@vger.kernel.org On 08/14/2013 02:11 AM, Julia Lawall wrote: > From: Julia Lawall > > Remove unneeded error handling on the result of a call to > platform_get_resource when the value is passed to devm_ioremap_resource. > > A simplified version of the semantic patch that makes this change is as > follows: (http://coccinelle.lip6.fr/) > > // > @@ > expression pdev,res,n,e,e1; > expression ret != 0; > identifier l; > @@ > > - res = platform_get_resource(pdev, IORESOURCE_MEM, n); > ... when != res > - if (res == NULL) { ... \(goto l;\|return ret;\) } > ... when != res > + res = platform_get_resource(pdev, IORESOURCE_MEM, n); > e = devm_ioremap_resource(e1, res); > // > > Signed-off-by: Julia Lawall > Reviewed-by: Guenter Roeck From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@roeck-us.net (Guenter Roeck) Date: Wed, 14 Aug 2013 20:17:03 -0700 Subject: [PATCH 10/29] drivers/watchdog/nuc900_wdt.c: simplify use of devm_ioremap_resource In-Reply-To: <1376471493-22215-11-git-send-email-Julia.Lawall@lip6.fr> References: <1376471493-22215-1-git-send-email-Julia.Lawall@lip6.fr> <1376471493-22215-11-git-send-email-Julia.Lawall@lip6.fr> Message-ID: <520C482F.5090806@roeck-us.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 08/14/2013 02:11 AM, Julia Lawall wrote: > From: Julia Lawall > > Remove unneeded error handling on the result of a call to > platform_get_resource when the value is passed to devm_ioremap_resource. > > A simplified version of the semantic patch that makes this change is as > follows: (http://coccinelle.lip6.fr/) > > // > @@ > expression pdev,res,n,e,e1; > expression ret != 0; > identifier l; > @@ > > - res = platform_get_resource(pdev, IORESOURCE_MEM, n); > ... when != res > - if (res == NULL) { ... \(goto l;\|return ret;\) } > ... when != res > + res = platform_get_resource(pdev, IORESOURCE_MEM, n); > e = devm_ioremap_resource(e1, res); > // > > Signed-off-by: Julia Lawall > Reviewed-by: Guenter Roeck