linux-kernel - Re: [PATCH v7 18/22] USB: ehci-omap: Don't free gpios that we didn't request

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Message-ID: <Pine.LNX.4.44L0.1301171015340.1339-100000@iolanthe.rowland.org>
Date:	Thu, 17 Jan 2013 10:15:51 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Roger Quadros <rogerq@...com>
cc:	balbi@...com, <sameo@...ux.intel.com>, <tony@...mide.com>,
	<kishon@...com>, <sshtylyov@...sta.com>, <bjorn@...k.no>,
	<linux@....linux.org.uk>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v7 18/22] USB: ehci-omap: Don't free gpios that we didn't
 request

On Thu, 17 Jan 2013, Roger Quadros wrote:

> This driver does not request any gpios so don't free them.
> Fixes L3 bus error on multiple modprobe/rmmod of ehci_hcd
> with ehci-omap in use.
> 
> CC: Alan Stern <stern@...land.harvard.edu>
> 
> Signed-off-by: Roger Quadros <rogerq@...com>

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

> ---
>  drivers/usb/host/ehci-omap.c |    8 --------
>  1 files changed, 0 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
> index 134c789..b96a4bf 100644
> --- a/drivers/usb/host/ehci-omap.c
> +++ b/drivers/usb/host/ehci-omap.c
> @@ -288,7 +288,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
>  {
>  	struct device *dev				= &pdev->dev;
>  	struct usb_hcd *hcd				= dev_get_drvdata(dev);
> -	struct usbhs_omap_platform_data *pdata		= dev->platform_data;
>  
>  	usb_remove_hcd(hcd);
>  	disable_put_regulator(dev->platform_data);
> @@ -298,13 +297,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
>  	pm_runtime_put_sync(dev);
>  	pm_runtime_disable(dev);
>  
> -	if (pdata->phy_reset) {
> -		if (gpio_is_valid(pdata->reset_gpio_port[0]))
> -			gpio_free(pdata->reset_gpio_port[0]);
> -
> -		if (gpio_is_valid(pdata->reset_gpio_port[1]))
> -			gpio_free(pdata->reset_gpio_port[1]);
> -	}
>  	return 0;
>  }
>  
> 

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