Re: [patch] usb: phy: msm: devm_ioremap() doesn't return ERR_PTRs

From: Fabio Estevam
Date: Wed May 14 2014 - 09:19:07 EST


On Wed, May 14, 2014 at 9:55 AM, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> devm_ioremap() returns a NULL on error so the IS_ERR() check needs to be
> updated.
>
> Fixes: 6b99c68ec1f9 ('usb: phy: msm: Migrate to Managed Device Resource allocation')
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
> index c522c4f..bd32257 100644
> --- a/drivers/usb/phy/phy-msm-usb.c
> +++ b/drivers/usb/phy/phy-msm-usb.c
> @@ -1587,8 +1587,8 @@ static int msm_otg_probe(struct platform_device *pdev)
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> motg->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
> - if (IS_ERR(motg->regs))
> - return PTR_ERR(motg->regs);
> + if (!motg->regs)
> + return -ENOMEM;

What about doing devm_ioremap_resource() instead?
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