Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932332Ab3HNJLw (ORCPT ); Wed, 14 Aug 2013 05:11:52 -0400 Received: from mail3-relais-sop.national.inria.fr ([192.134.164.104]:57951 "EHLO mail3-relais-sop.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932241Ab3HNJLq (ORCPT ); Wed, 14 Aug 2013 05:11:46 -0400 X-IronPort-AV: E=Sophos;i="4.89,875,1367964000"; d="scan'208";a="23908328" From: Julia Lawall To: Alessandro Zummo Cc: kernel-janitors@vger.kernel.org, rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org Subject: [PATCH 17/29] drivers/rtc: simplify use of devm_ioremap_resource Date: Wed, 14 Aug 2013 11:11:21 +0200 Message-Id: <1376471493-22215-18-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> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3377 Lines: 105 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 --- drivers/rtc/rtc-ds1216.c | 4 +--- drivers/rtc/rtc-ds1286.c | 4 +--- drivers/rtc/rtc-spear.c | 7 +------ 3 files changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/rtc/rtc-ds1216.c b/drivers/rtc/rtc-ds1216.c index 9c04fd2..c948bd3 100644 --- a/drivers/rtc/rtc-ds1216.c +++ b/drivers/rtc/rtc-ds1216.c @@ -144,15 +144,13 @@ static int __init ds1216_rtc_probe(struct platform_device *pdev) struct ds1216_priv *priv; u8 dummy[8]; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; platform_set_drvdata(pdev, priv); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->ioaddr = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(priv->ioaddr)) return PTR_ERR(priv->ioaddr); diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c index 50e109b..14c4b24 100644 --- a/drivers/rtc/rtc-ds1286.c +++ b/drivers/rtc/rtc-ds1286.c @@ -332,13 +332,11 @@ static int ds1286_probe(struct platform_device *pdev) struct resource *res; struct ds1286_priv *priv; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; priv = devm_kzalloc(&pdev->dev, sizeof(struct ds1286_priv), GFP_KERNEL); if (!priv) return -ENOMEM; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->rtcregs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(priv->rtcregs)) return PTR_ERR(priv->rtcregs); diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c index c492cf0..6470641 100644 --- a/drivers/rtc/rtc-spear.c +++ b/drivers/rtc/rtc-spear.c @@ -358,12 +358,6 @@ static int spear_rtc_probe(struct platform_device *pdev) int status = 0; int irq; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no resource defined\n"); - return -EBUSY; - } - config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL); if (!config) { dev_err(&pdev->dev, "out of memory\n"); @@ -385,6 +379,7 @@ static int spear_rtc_probe(struct platform_device *pdev) return status; } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); config->ioaddr = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(config->ioaddr)) return PTR_ERR(config->ioaddr); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/