linux-kernel - Re: [PATCH] usb: gadget: goku

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Date:	Sun, 3 Oct 2010 18:17:01 +0200
From:	Dan Carpenter <error27@...il.com>
To:	Rahul Ruikar <rahul.ruikar@...il.com>
Cc:	David Brownell <dbrownell@...rs.sourceforge.net>,
	Greg Kroah-Hartman <gregkh@...e.de>, nm127@...email.hu,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: gadget: goku_udc: Fix error path

On Sun, Oct 03, 2010 at 07:40:16PM +0530, Rahul Ruikar wrote:
> call put_device() when device_register() fails.
> 

Huh?  I don't see any calls to put_device() in your patch.

regards,
dan carpenter


> Signed-off-by: Rahul Ruikar <rahul.ruikar@...il.com>
> ---
>  drivers/usb/gadget/goku_udc.c |    7 ++++++-
>  drivers/usb/gadget/goku_udc.h |    3 ++-
>  2 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
> index 1088d08..080779b 100644
> --- a/drivers/usb/gadget/goku_udc.c
> +++ b/drivers/usb/gadget/goku_udc.c
> @@ -1847,8 +1847,13 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  	/* done */
>  	the_controller = dev;
>  	retval = device_register(&dev->gadget.dev);
> -	if (retval == 0)
> +	if (retval != 0) {
> +		dev_reg_status = 2;
> +		goto done;
> +	} else {
> +		dev_reg_status = 1;
>  		return 0;
> +	}
>  
>  done:
>  	if (dev)
> diff --git a/drivers/usb/gadget/goku_udc.h b/drivers/usb/gadget/goku_udc.h
> index 566cb23..c27b9e2 100644
> --- a/drivers/usb/gadget/goku_udc.h
> +++ b/drivers/usb/gadget/goku_udc.h
> @@ -251,7 +251,8 @@ struct goku_udc {
>  					got_region:1,
>  					req_config:1,
>  					configured:1,
> -					enabled:1;
> +					enabled:1,
> +					dev_reg_status:2;
>  
>  	/* pci state used to access those endpoints */
>  	struct pci_dev			*pdev;
> -- 
> 1.7.2.3
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