OK, so this means we can just forget about suspending/resuming i8042
asynchronously, which is a pity, because that gave us some real suspend
speedup on my test systems.
So, seriously, do you think it makes sense to do asynchronous suspend at all?
I'm asking, because we're likely to get into troubles like this during suspend
for other kinds of devices too and without resolving them we won't get any
significant speedup from asynchronous suspend.
That said, to me it's definitely worth doing asynchronous resume with the
"start asynch threads upfront" modification, as the results of the tests show
that quite clearly. I hope you agree.