Re: [PATCH] drivers/net: caif: fix wrong rtnl_is_locked() usage

From: David Miller
Date: Tue Jul 09 2013 - 15:56:41 EST


From: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
Date: Mon, 08 Jul 2013 11:23:04 +0400

> rtnl_is_locked() doesn't check who holds this lock, it just tells that it's
> locked right now. if caif::ldisc_close really can be called under rtrnl_lock
> then it should release net device in other context because there is no way
> to grab rtnl_lock without deadlock.
>
> This patch adds work which releases these devices. Also this patch fixes calling
> dev_close/unregister_netdevice without rtnl_lock from caif_ser_exit().
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>

Applied.
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