Raw can socket close and disabling filters

[laurent vaudoit <laurent.vaudoit@gmail.com>]

Hi all,
i'm using a 3.10 kernel with rtpatch applied, with raw can features.
Running some debug in the release function, i've seen something weird (for 
me).

In the function, we get the socket informations
and then we unregister the notifier.

After this, we test if the socket is bound and which is the ifindex.

But when the unregister function is called, there is a call to the notifier 
with the event NETDEV_UNREGISTER, who leads to clear the socket inforamtions 
like bound and ifindex.

So in the release function we can never enter in the code specific to a 
device.

Is there something i've missed?

Thanks in advance for your answer.
Regards
Laurent