netdev - Re: [PATCH] decnet: handle a failure in neigh_parms

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Message-Id: <20070124.144511.56810202.davem@davemloft.net>
Date:	Wed, 24 Jan 2007 14:45:11 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ebiederm@...ssion.com
Cc:	netdev@...r.kernel.org, steve@...gwyn.com
Subject: Re: [PATCH] decnet: handle a failure in neigh_parms_alloc

From: ebiederm@...ssion.com (Eric W. Biederman)
Date: Wed, 24 Jan 2007 13:09:40 -0700

> 
> While enhancing the neighbour code to handle multiple network
> namespaces I noticed that decnet is assuming neigh_parms_alloc
> will allways succeed, which is clearly wrong.  So handle the
> failure.
> 
> Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>

I don't think this one is correct.

During failure cleanup you also have to invoke the neighbour parms
->down() operation if present, else you leave multicast entries on the
ethernet device for example.
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