From patchwork Fri May 10 08:16:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 242931 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 21F922C00F6 for ; Fri, 10 May 2013 18:16:57 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752510Ab3EJIQ2 (ORCPT ); Fri, 10 May 2013 04:16:28 -0400 Received: from sauhun.de ([89.238.76.85]:60354 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752498Ab3EJIQ0 (ORCPT ); Fri, 10 May 2013 04:16:26 -0400 Received: from p5b38793b.dip0.t-ipconnect.de ([91.56.121.59]:14023 helo=localhost) by pokefinder.org with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.69) (envelope-from ) id 1UaiV5-0001Ap-Pw; Fri, 10 May 2013 10:16:25 +0200 From: Wolfram Sang To: linux-kernel@vger.kernel.org Cc: Wolfram Sang , Grant Likely , Linus Walleij , Stephen Warren , linux-tegra@vger.kernel.org Subject: [RFC 05/42] drivers/gpio: don't check resource with devm_ioremap_resource Date: Fri, 10 May 2013 10:16:50 +0200 Message-Id: <1368173847-5661-6-git-send-email-wsa@the-dreams.de> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1368173847-5661-1-git-send-email-wsa@the-dreams.de> References: <1368173847-5661-1-git-send-email-wsa@the-dreams.de> Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang Acked-by: Viresh Kumar --- drivers/gpio/gpio-mvebu.c | 12 +----------- drivers/gpio/gpio-spear-spics.c | 7 +------ drivers/gpio/gpio-tegra.c | 5 ----- 3 files changed, 2 insertions(+), 22 deletions(-) diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index bf69a7e..60e8c6e 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -566,12 +566,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev) else soc_variant = MVEBU_GPIO_SOC_VARIANT_ORION; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "Cannot get memory resource\n"); - return -ENODEV; - } - mvchip = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_gpio_chip), GFP_KERNEL); if (!mvchip) { dev_err(&pdev->dev, "Cannot allocate memory\n"); @@ -611,6 +605,7 @@ static int mvebu_gpio_probe(struct platform_device *pdev) mvchip->chip.dbg_show = mvebu_gpio_dbg_show; spin_lock_init(&mvchip->lock); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); mvchip->membase = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(mvchip->membase)) return PTR_ERR(mvchip->membase); @@ -619,11 +614,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev) * per-CPU registers */ if (soc_variant == MVEBU_GPIO_SOC_VARIANT_ARMADAXP) { res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!res) { - dev_err(&pdev->dev, "Cannot get memory resource\n"); - return -ENODEV; - } - mvchip->percpu_membase = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(mvchip->percpu_membase)) diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c index 7a4bf7c..e9a0415 100644 --- a/drivers/gpio/gpio-spear-spics.c +++ b/drivers/gpio/gpio-spear-spics.c @@ -128,18 +128,13 @@ static int spics_gpio_probe(struct platform_device *pdev) struct resource *res; int ret; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "invalid IORESOURCE_MEM\n"); - return -EBUSY; - } - spics = devm_kzalloc(&pdev->dev, sizeof(*spics), GFP_KERNEL); if (!spics) { dev_err(&pdev->dev, "memory allocation fail\n"); return -ENOMEM; } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); spics->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(spics->base)) return PTR_ERR(spics->base); diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index da4cb5b..9a62672 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -463,11 +463,6 @@ static int tegra_gpio_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "Missing MEM resource\n"); - return -ENODEV; - } - regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(regs)) return PTR_ERR(regs);