linux-kernel - Re: [PATCHv2] usb: gadget: storage

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Date:	Wed, 13 Apr 2011 19:16:35 -0700
From:	Greg KH <gregkh@...e.de>
To:	Michal Nazarewicz <mina86@...a86.com>
Cc:	Alan Stern <stern@...land.harvard.edu>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2] usb: gadget: storage_common: use kstrto*()

On Thu, Apr 14, 2011 at 02:40:39AM +0200, Michal Nazarewicz wrote:
> This commit replaces the usage of strict_strtoul() (which
> became deprecated after commit 33ee3b2e) with kstrtouint().
> 
> Signed-off-by: Michal Nazarewicz <mina86@...a86.com>
> ---
>  drivers/usb/gadget/storage_common.c |   18 +++++++++++-------
>  1 files changed, 11 insertions(+), 7 deletions(-)
> 
> > @@ -711,10 +711,11 @@ static ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
> >  	ssize_t		rc = count;
> >  	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
> >  	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
> > -	unsigned long	ro;
> > +	unsigned	ro;
> >  
> > -	if (strict_strtoul(buf, 2, &ro))
> > -		return -EINVAL;
> > +	rc = kstrtouint(buf, 2, &ro);
> > +	if (rc)
> > +		return rc;
> >  
> 
> Sorry, I've just noticed this zeroes the rc so that the function returns
> invalid read length.  Attached patch has the following delta included:

Ugh, I applied the first one already :(

Care to send a follow-on patch that fixes this properly?

thanks,

greg k-h
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