linux-kernel - Re: [PATCH] netfilter: ipvs: Verify that IP

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Message-ID: <20120413062250.GA6163@verge.net.au>
Date:	Fri, 13 Apr 2012 15:22:50 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Sasha Levin <levinsasha928@...il.com>
Cc:	Pablo Neira Ayuso <pablo@...filter.org>, wensong@...ux-vs.org,
	ja@....bg, kaber@...sh.net, davem@...emloft.net, davej@...hat.com,
	netdev@...r.kernel.org, lvs-devel@...r.kernel.org,
	netfilter-devel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfilter: ipvs: Verify that IP_VS protocol has been
 registered

On Fri, Apr 13, 2012 at 01:11:50PM +0900, Simon Horman wrote:
> On Fri, Apr 13, 2012 at 02:54:13AM +0200, Sasha Levin wrote:
> > On Thu, Apr 12, 2012 at 1:46 AM, Pablo Neira Ayuso <pablo@...filter.org> wrote:
> > >> If you return here, I think you'll leave things in inconsistent state,
> > >> ie. the tcp protocol is registered. You have to unregister it before
> > >> leaving.
> > 
> > I thought that the cleanup callback is getting called for failed init
> > calls, if that's not the case then we can probably call it ourselves
> > if any of these failed.
> 
> Good point. In any case, I think that I have found a new problem.

[sni@]

I have confirmed that the cleanup code is called on error, so I think that
your existing patch is fine.

Acked-by: Simon Horman <horms@...ge.net.au>

Pablo, please consider taking this change. The other problem I raised,
though related, can be handled separately as it won't occur if the
ftp helper isn't initialised.

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