From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David S. Miller" <davem@redhat.com>
Subject: Re: Deadlock problem with dev->refcnt somewhere in
 netlink/multicast... [PATCH]
Date: Mon, 2 Feb 2004 15:47:55 -0800
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To: David Stevens <dlstevens@us.ibm.com>
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On Mon, 2 Feb 2004 16:41:11 -0700
David Stevens <dlstevens@us.ibm.com> wrote:

> Below is a patch for the reference count problem you ran into.
> 
> The problem is that the IGMP code was using "IFF_UP" to determine
> if a report should be sent or a timer should be started. But it is not
> necessarily cleared during a destroy_dev.
> 
> The IPv4 code was also missing an ip_mc_down() call added in the
> IPv6 code for a similar case by Jan Oravec.

Applied to both 2.4.x and 2.6.x, thanks David.