On Sunday, December 26, 2010, Ohad Ben-Cohen wrote:
> On Sun, Dec 26, 2010 at 1:45 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > (It still is not a race, though.)
>
> Thread 1
> =======
>
> suspend_handler_of_a_random_device()
> {
> return failure;
> }
>
> Thread 2
> =======
>
> suspend_handler_of_our_mmc_host_controller()
> {
> invoke our sdio suspend handler and power down the card (directly);
> return success;
> }
>
> If thread 2 wins => everything is cool
> If thread 1 wins => our driver will not be able to resume
>
> The race begins after mac80211 invokes our driver's power off handler,
> which is using pm_runtime_put_sync().
So, it only happens during asynchronous suspend? In other words, if suspend
is synchronous, everything should be fine, right?
Rafael
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