linux-kernel - Re: [PATCH 13/15] pci: mvebu: Convert to use devm_ioremap

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Date:	Mon, 10 Jun 2013 19:59:28 +0530
From:	Sachin Kamat <sachin.kamat@...aro.org>
To:	Tushar Behera <tushar.behera@...aro.org>
Cc:	linux-kernel@...r.kernel.org, thierry.reding@...il.com,
	patches@...aro.org, linux-pci@...r.kernel.org,
	Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH 13/15] pci: mvebu: Convert to use devm_ioremap_resource

On 10 June 2013 17:05, Tushar Behera <tushar.behera@...aro.org> wrote:
> Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
> introduced devm_ioremap_resource() and deprecated the use of
> devm_request_and_ioremap().
>
> Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
> CC: linux-pci@...r.kernel.org
> CC: Bjorn Helgaas <bhelgaas@...gle.com>
> ---
>  drivers/pci/host/pci-mvebu.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
> index 13a633b..e714876 100644
> --- a/drivers/pci/host/pci-mvebu.c
> +++ b/drivers/pci/host/pci-mvebu.c
> @@ -752,7 +752,7 @@ mvebu_pcie_map_registers(struct platform_device *pdev,
>         if (ret)
>                 return NULL;
>
> -       return devm_request_and_ioremap(&pdev->dev, &regs);
> +       return devm_ioremap_resource(&pdev->dev, &regs);
>  }
>
>  static int __init mvebu_pcie_probe(struct platform_device *pdev)
> @@ -842,9 +842,10 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
>                         continue;
>
>                 port->base = mvebu_pcie_map_registers(pdev, child, port);
> -               if (!port->base) {
> +               if (IS_ERR(port->base)) {
>                         dev_err(&pdev->dev, "PCIe%d.%d: cannot map registers\n",
>                                 port->port, port->lane);

This error message is redundant.

> +                       port->base = NULL;
Probably this is also not needed.

>                         continue;
>                 }
>
> --
> 1.7.9.5
>
> --
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-- 
With warm regards,
Sachin
--
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