linux-kernel - Re: [PATCH 18/20] staging/lustre/libcfs: get rid of debugfs/lnet/debug

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Message-ID: <20150714030410.GA31396@kroah.com>
Date:	Mon, 13 Jul 2015 20:04:10 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Oleg Drokin <green@...uxhacker.ru>
Cc:	devel@...verdev.osuosl.org,
	Andreas Dilger <andreas.dilger@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH 18/20] staging/lustre/libcfs: get rid of
 debugfs/lnet/debug_mb

On Mon, Jul 13, 2015 at 10:45:36PM -0400, Oleg Drokin wrote:
> 
> On Jul 13, 2015, at 10:43 PM, Greg Kroah-Hartman wrote:
> 
> > On Wed, Jul 08, 2015 at 11:45:59AM +0300, Dan Carpenter wrote:
> >> On Mon, Jul 06, 2015 at 12:48:56PM -0400, green@...uxhacker.ru wrote:
> >>> +static int libcfs_param_debug_mb_set(const char *val,
> >>> +				     const struct kernel_param *kp)
> >>> +{
> >>> +	int rc;
> >>> +	unsigned num;
> >>> +
> >>> +	rc = kstrtouint(val, 0, &num);
> >>> +	if (rc == -EINVAL)
> >>> +		return -EINVAL;
> >> 
> >> Presumably, this is root only so using num uninitialized is not an
> >> information leak.
> > 
> > But it's not good, this should be a check for rc < 0 to make sure.
> > 
> > Oleg, can you send a follow-on patch to fix this up?
> 
> Sure.
> Do you want it now or should I wait till you merge my previous bunch?

I already merged your previous bunch :)
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