Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751193Ab3HTJNi (ORCPT ); Tue, 20 Aug 2013 05:13:38 -0400 Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:36835 "EHLO mail2-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751077Ab3HTJNg (ORCPT ); Tue, 20 Aug 2013 05:13:36 -0400 X-IronPort-AV: E=Sophos;i="4.89,918,1367964000"; d="scan'208";a="29825046" Date: Tue, 20 Aug 2013 11:13:14 +0200 (CEST) From: Julia Lawall X-X-Sender: jll@hadrien To: Thierry Reding cc: Julia Lawall , kernel-janitors@vger.kernel.org, Bjorn Helgaas , Stephen Warren , linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/7] PCI: tegra: replace devm_request_and_ioremap by devm_ioremap_resource In-Reply-To: <20130819193339.GB4961@mithrandir> Message-ID: References: <1376911241-27720-1-git-send-email-Julia.Lawall@lip6.fr> <1376911241-27720-2-git-send-email-Julia.Lawall@lip6.fr> <20130819120249.GA5740@ulmo> <20130819121238.GB5740@ulmo> <20130819193339.GB4961@mithrandir> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2639 Lines: 85 From: Julia Lawall Use devm_ioremap_resource instead of devm_request_and_ioremap. This was done using the semantic patch scripts/coccinelle/api/devm_ioremap_resource.cocci Error-handling code was manually removed from the associated calls to platform_get_resource. Adjust the comment at the third platform_get_resource_byname to make clear why ioremap is not done at this point. Signed-off-by: Julia Lawall Acked-by: Thierry Reding Tested-by: Thierry Reding --- v2: add the change to the comment drivers/pci/host/pci-tegra.c | 31 ++++++++++--------------------- 1 file changed, 10 insertions(+), 21 deletions(-) diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index 7356741..2e9888a 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -1031,32 +1031,21 @@ static int tegra_pcie_get_resources(struct tegra_pcie *pcie) return err; } - /* request and remap controller registers */ pads = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pads"); - if (!pads) { - err = -EADDRNOTAVAIL; + pcie->pads = devm_ioremap_resource(&pdev->dev, pads); + if (IS_ERR(pcie->pads)) { + err = PTR_ERR(pcie->pads); goto poweroff; } afi = platform_get_resource_byname(pdev, IORESOURCE_MEM, "afi"); - if (!afi) { - err = -EADDRNOTAVAIL; - goto poweroff; - } - - pcie->pads = devm_request_and_ioremap(&pdev->dev, pads); - if (!pcie->pads) { - err = -EADDRNOTAVAIL; - goto poweroff; - } - - pcie->afi = devm_request_and_ioremap(&pdev->dev, afi); - if (!pcie->afi) { - err = -EADDRNOTAVAIL; + pcie->afi = devm_ioremap_resource(&pdev->dev, afi); + if (IS_ERR(pcie->afi)) { + err = PTR_ERR(pcie->afi); goto poweroff; } - /* request and remap configuration space */ + /* request configuration space, but remap later, on demand */ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cs"); if (!res) { err = -EADDRNOTAVAIL; @@ -1492,9 +1481,9 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie) rp->lanes = value; rp->pcie = pcie; - rp->base = devm_request_and_ioremap(pcie->dev, &rp->regs); - if (!rp->base) - return -EADDRNOTAVAIL; + rp->base = devm_ioremap_resource(pcie->dev, &rp->regs); + if (IS_ERR(rp->base)) + return PTR_ERR(rp->base); list_add_tail(&rp->list, &pcie->ports); } -- 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/