Re: [PATCH 1/2] thunderbolt: Do not handle ICM events after domain is stopped

[Mika Westerberg]

On Mon, Sep 03, 2018 at 04:20:11PM +0300, Mika Westerberg wrote:
> If there is a long chain of devices connected when the driver is loaded
> ICM sends device connected event for each and those are put to tb->wq
> for later processing. Now if the driver gets unloaded in the middle, so
> that the work queue is not yet empty it gets flushed by tb_domain_stop().
> However, by that time the root switch is already removed so the driver
> crashes when it tries to dereference it in ICM event handling callbacks.
> 
> Fix this by checking whether the root switch is already removed. If it
> is we know that the domain is stopped and we should merely skip handling
> the event.
> 
> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

Applied to thunderbolt.git/fixes.