linux-kernel - Re: [PATCH 5/5] drivers/usb/host/ehci-platform.c: fix error return code

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Date:	Wed, 15 Aug 2012 10:37:15 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Julia Lawall <Julia.Lawall@...6.fr>
cc:	kernel-janitors@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/5] drivers/usb/host/ehci-platform.c: fix error return
 code

On Tue, 14 Aug 2012, Julia Lawall wrote:

> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> Convert a possibly 0 error return code to a negative one, as returned
> elsewhere in the function.

...

> diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
> index 91acdde..764e010 100644
> --- a/drivers/usb/host/ehci-platform.c
> +++ b/drivers/usb/host/ehci-platform.c
> @@ -128,8 +128,10 @@ static int __devinit ehci_platform_probe(struct platform_device *dev)
>  	}
>  
>  	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
> -	if (!hcd->regs)
> +	if (!hcd->regs) {
> +		err = -ENOMEM;
>  		goto err_release_region;
> +	}
>  	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
>  	if (err)
>  		goto err_iounmap;

Acked-by: Alan Stern <stern@...land.harvard.edu>

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