Re: [PATCH] Input: wacom - fix error return code in wacom_probe()

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Hi Wei,

On Fri, Aug 23, 2013 at 10:53:00AM +0800, Wei Yongjun wrote:
> From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
> 
> Fix to return a negative error code from the urb submit error
> handling case instead of 0, as done elsewhere in this function.
> 
> Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
> ---
>  drivers/input/tablet/wacom_sys.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
> index aaf23ae..7eeac61 100644
> --- a/drivers/input/tablet/wacom_sys.c
> +++ b/drivers/input/tablet/wacom_sys.c
> @@ -1366,7 +1366,8 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
>  	usb_set_intfdata(intf, wacom);
>  
>  	if (features->quirks & WACOM_QUIRK_MONITOR) {
> -		if (usb_submit_urb(wacom->irq, GFP_KERNEL))
> +		error = usb_submit_urb(wacom->irq, GFP_KERNEL);
> +		if (error)
>  			goto fail5;
>  	}

If I remember correctly usb_submit_urb() uses errno definitions in a
creative way, so returning them verbatim to the upper layers is not teh
beset solution. I will change this to return -EIO instead.

Thanks.

-- 
Dmitry
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