How should a driver shutdown a taskqueue on detach?

[Ryan Stone]

On Wed, Jul 1, 2015 at 4:58 PM, Jack Vogel <jfvogel at gmail.com> wrote:

> But if you've disabled interrupts why would an "interrupt-handling task"
> even run??
>
> Jack
>

There's a race.  The task could have already have been scheduled by a
previous interrupt and could be running while I am trying to disable
interrupts and drain the taskqueue.