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SubjectRe: [PATCH V3] mISDN: fix use-after-free bugs in l1oip timer handlers
Hello,

On Tue, 27 Sep 2022 17:26:18 -0700 Jakub Kicinski wrote:

> On Sat, 24 Sep 2022 10:18:42 +0800 Duoming Zhou wrote:
> > + del_timer_sync(&hc->keep_tl);
> > + del_timer_sync(&hc->timeout_tl);
> > + cancel_work_sync(&hc->workq);
> > + del_timer_sync(&hc->keep_tl);
> > cancel_work_sync(&hc->workq);
>
> Why not add a bit which will indicate that the device is shutting
> down and check it in places which schedule the timer?
> I think that's much easier to reason about and we won't need to do
> this rep cancel procedure.

Thank you for your time and suggestions!

Best regards,
Duoming Zhou
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