Re: [PATCH] netfilter: ipvs: Verify that IP_VS protocol has beenregistered

From: Simon Horman
Date: Fri Apr 13 2012 - 03:16:21 EST


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@xxxxxxxxxxxxx> 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@xxxxxxxxxxxx>

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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