netdev - Re: [PATCH net-2.6] llc: fix a device refcount imbalance

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Date:	Wed, 08 Dec 2010 09:59:20 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	maximlevitsky@...il.com, linux1394-devel@...ts.sourceforge.net,
	stefanr@...6.in-berlin.de, netdev@...r.kernel.org,
	kuznet@....inr.ac.ru, jmorris@...ei.org, kaber@...sh.net,
	opurdila@...acom.com, stable@...nel.org
Subject: Re: [PATCH net-2.6] llc: fix a device refcount imbalance

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sun, 05 Dec 2010 13:03:26 +0100

> [PATCH net-2.6] llc: fix a device refcount imbalance
> 
> commit abf9d537fea225 (llc: add support for SO_BINDTODEVICE) added one
> refcount imbalance in llc_ui_bind(), because dev_getbyhwaddr() doesnt
> take a reference on device, while dev_get_by_index() does.
> 
> Fix this using RCU locking. And since an RCU conversion will be done for
> 2.6.38 for dev_getbyhwaddr(), put the rcu_read_lock/unlock exactly at
> their final place.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>

Applied and queued up for -stable.
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