From patchwork Wed Aug 14 09:11:29 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julia Lawall X-Patchwork-Id: 2844260 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 156D39F2F4 for ; Wed, 14 Aug 2013 09:13:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3C610203B4 for ; Wed, 14 Aug 2013 09:13:51 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2CB632039D for ; Wed, 14 Aug 2013 09:13:50 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V9X8V-000470-2T; Wed, 14 Aug 2013 09:12:59 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1V9X8G-0001i0-KU; Wed, 14 Aug 2013 09:12:44 +0000 Received: from mail3-relais-sop.national.inria.fr ([192.134.164.104]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V9X7j-0001b0-A8 for linux-arm-kernel@lists.infradead.org; Wed, 14 Aug 2013 09:12:12 +0000 X-IronPort-AV: E=Sophos;i="4.89,875,1367964000"; d="scan'208";a="23908336" Received: from palace.lip6.fr (HELO localhost.localdomain) ([132.227.105.202]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-SHA; 14 Aug 2013 11:11:39 +0200 From: Julia Lawall To: Barry Song Subject: [PATCH 25/29] drivers/spi/spi-sirf.c: simplify use of devm_ioremap_resource Date: Wed, 14 Aug 2013 11:11:29 +0200 Message-Id: <1376471493-22215-26-git-send-email-Julia.Lawall@lip6.fr> X-Mailer: git-send-email 1.7.8.6 In-Reply-To: <1376471493-22215-1-git-send-email-Julia.Lawall@lip6.fr> References: <1376471493-22215-1-git-send-email-Julia.Lawall@lip6.fr> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130814_051211_614085_3FA0E474 X-CRM114-Status: GOOD ( 11.30 ) X-Spam-Score: -6.1 (------) Cc: Mark Brown , kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-7.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. 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 Acked-by: Barry Song --- drivers/spi/spi-sirf.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index 62c92c3..546fae2 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -588,12 +588,6 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, master); sspi = spi_master_get_devdata(master); - mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem_res) { - dev_err(&pdev->dev, "Unable to get IO resource\n"); - ret = -ENODEV; - goto free_master; - } master->num_chipselect = num_cs; for (i = 0; i < master->num_chipselect; i++) { @@ -620,6 +614,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) } } + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); sspi->base = devm_ioremap_resource(&pdev->dev, mem_res); if (IS_ERR(sspi->base)) { ret = PTR_ERR(sspi->base);