linux-kernel - Re: [PATCH] usb-core: Remove Fix mes in file hcd.c

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Date:	Fri, 18 Jul 2014 15:09:47 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Nicholas Krause <xerofoify@...il.com>
cc:	gregkh@...uxfoundation.org, <mail@...ermatthias.de>,
	<hdegoede@...hat.com>, <dan.j.williams@...el.com>,
	<valentine.barshak@...entembedded.com>, <ming.lei@...onical.com>,
	<michael.opdenacker@...e-electrons.com>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb-core: Remove Fix mes in file hcd.c

On Fri, 18 Jul 2014, Nicholas Krause wrote:

> I am removing two fix mes in this file as after dicussing then it  seems
> there is no reason to check against Null for usb_device as it can never
> be NULL and this is check is therefore not needed.
> 
> Signed-off-by: Nicholas Krause <xerofoify@...il.com>
> ---
>  drivers/usb/core/hcd.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
> index bec31e2..487abcf 100644
> --- a/drivers/usb/core/hcd.c
> +++ b/drivers/usb/core/hcd.c
> @@ -855,8 +855,6 @@ static ssize_t authorized_default_show(struct device *dev,
>  	struct usb_bus *usb_bus = rh_usb_dev->bus;
>  	struct usb_hcd *usb_hcd;
>  
> -	if (usb_bus == NULL)	/* FIXME: not sure if this case is possible */
> -		return -ENODEV;
>  	usb_hcd = bus_to_hcd(usb_bus);
>  	return snprintf(buf, PAGE_SIZE, "%u\n", usb_hcd->authorized_default);
>  }
> @@ -871,8 +869,6 @@ static ssize_t authorized_default_store(struct device *dev,
>  	struct usb_bus *usb_bus = rh_usb_dev->bus;
>  	struct usb_hcd *usb_hcd;
>  
> -	if (usb_bus == NULL)	/* FIXME: not sure if this case is possible */
> -		return -ENODEV;
>  	usb_hcd = bus_to_hcd(usb_bus);
>  	result = sscanf(buf, "%u\n", &val);
>  	if (result == 1) {

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

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