Re: 2.6.7-rc3: unregister_netdevice: waiting for tun0 to become free. Usage count = 1

[Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>]

On Thu, Jun 17, 2004 at 11:07:39PM +0400, Alexey Kuznetsov wrote:
> 
> >                                              and that we need to
> > add another call in unregister_netdevice() right before final dev_put().
> 
> This should be enough.

It is enough for this dst case, but it may not be enough in general.

Other event handlers may need a rebroadcast before they drop the dev
reference.  So we really should do the synchronize_net() before
freeing the device in net_run_todo().

Cheers,
-- 
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