From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] pppoe: drop pppoe device in pppoe_unbind_sock_work
Date: Mon, 11 May 2015 12:58:47 -0400 (EDT)
Message-ID: <20150511.125847.1599775899483403147.davem@davemloft.net>
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From: Felix Fietkau <nbd@openwrt.org>
Date: Sat,  9 May 2015 23:08:38 +0200

> After receiving a PADT and the socket is closed, user space will no
> longer drop the reference to the pppoe device.
> This leads to errors like this:
> 
> [  488.570000] unregister_netdevice: waiting for eth0.2 to become free. Usage count = 2
> 
> Fixes: 287f3a943fe ("pppoe: Use workqueue to die properly when a PADT is received")
> Signed-off-by: Felix Fietkau <nbd@openwrt.org>

Applied, thanks Felix.