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From: Dan Carpenter <dan.carpenter@oracle.com>
To: bojan prtvar <prtvar.b@gmail.com>
Cc: walter harms <wharms@bfs.de>,
	Jussi Kivilinna <jussi.kivilinna@mbnet.fi>,
	"John W. Linville" <linville@tuxdriver.com>,
	linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [patch 1/4 v2] rndis_wlan: integer overflows in rndis_wlan_do_link_up_work()
Date: Thu, 1 Mar 2012 15:57:40 +0300	[thread overview]
Message-ID: <20120301125739.GF22598@mwanda> (raw)
In-Reply-To: <CAOmT4fS1jnywLoiMJjewFi2-w1UHySNPCEhAbrZwW01OS1hV6w@mail.gmail.com>

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On Thu, Mar 01, 2012 at 10:51:37AM +0100, bojan prtvar wrote:
> Hi,
> 
> 
> On Thu, Mar 1, 2012 at 8:02 AM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> >
> >
> >
> >
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > ---
> > v2: Fixed a style issue for Walter Harms.  Changed > 0 to != 0.
> >
> 
> Why not just  if (req_ie_len) and if (resp_ie_len) ?
> 

It could go either way.  I wrote it that way first, then I decided
that zero was a special enough case to draw attention to it.  In
this case it felt like zero was its own thing.

For allocation failures I would do:
	foo = kmalloc();
	if (!foo)
		return -ENOMEM;
Allocation failures are not interesting and the NULL doesn't have a
special meaning and doesn't need explanation.

Hard to explain.

regards,
dan carpenter

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  reply	other threads:[~2012-03-01 12:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-29  6:35 [patch 1/4] rndis_wlan: integer overflows in rndis_wlan_do_link_up_work() Dan Carpenter
2012-02-29  8:21 ` walter harms
2012-03-01  6:58   ` Dan Carpenter
2012-03-01  7:02   ` [patch 1/4 v2] " Dan Carpenter
2012-03-01  9:51     ` bojan prtvar
2012-03-01 12:57       ` Dan Carpenter [this message]
2012-03-01 10:19 ` [patch 1/4] " Jussi Kivilinna

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