[linux-pm] [PATCH 09/10] Input: Hold wake lock while event queue is not empty.
Rafael J. Wysocki
rjw at sisk.pl
Fri Feb 13 15:06:17 PST 2009
On Friday 13 February 2009, Matthew Garrett wrote:
> On Thu, Feb 12, 2009 at 04:52:22PM -0800, Arve Hjønnevåg wrote:
>
> > That was not the bug. Another component opened one of the input
> > devices, but did not read events from it.
>
> It's not the job of the kernel to guard against userspace doing foolish
> things.
Amen.
> Either you want to wait for input events to be consumed before
> suspend or you don't - arbitrary timeouts provide no guarantees about
> the correctness of your platform's behaviour. The default permissions on
> the event devices mean that the only components that could interfere
> with this are ones under your control, so fixing them seems like the
> sensible approach.
This is exactly my point, but I couldn't find words to say it so clearly.
Thanks,
Rafael
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