netdev - Re: [PATCH]: Add security check before flushing SAD/SPD

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Message-ID: <Line.LNX.4.64.0703261612370.14914@d.namei>
Date:	Mon, 26 Mar 2007 16:14:59 -0400 (EDT)
From:	James Morris <jmorris@...ei.org>
To:	Joy Latten <latten@...tin.ibm.com>
cc:	netdev@...r.kernel.org, davem@...emloft.net, eparis@...hat.com,
	selinux@...ho.nsa.gov
Subject: Re: [PATCH]: Add security check before flushing SAD/SPD

On Mon, 26 Mar 2007, James Morris wrote:

> On Mon, 26 Mar 2007, Joy Latten wrote:
> 
> > Signed-off-by: Joy Latten<latten@...tin.ibm.com>
> 
> This looks ok to me, although I have a couple of minor issues (which 
> should probably not stop it being merged):
> 
> > +			if ((err = security_xfrm_policy_delete(pol)) != 0) {
> 
> The value of 'err' is implicitly inverted several times in this function 
> (and similarly in the state flush one).  Something like
> 
> 	ret = (fn() != 0);

Oops, ignore the above.

The correct idiom is:

	err = fn();
	if (err) {
		/* handle error */
	}


Please use that, to reduce confusion :-)



- James
-- 
James Morris
<jmorris@...ei.org>
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