Commit 52d136cc authored Apr 29, 2012 by Rafael J. Wysocki

PM / Sleep: Look for wakeup events in later stages of device suspend



Currently, the device suspend code in drivers/base/power/main.c
only checks if there have been any wakeup events, and therefore the
ongoing system transition to a sleep state should be aborted, during
the first (i.e. "suspend") device suspend phase.  However, wakeup
events may be reported later as well, so it's reasonable to look for
them in the in the subsequent (i.e. "late suspend" and "suspend
noirq") phases.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 5a21d489

drivers/base/power/main.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -889,6 +889,11 @@ static int dpm_suspend_noirq(pm_message_t state)
		if (!list_empty(&dev->power.entry))
		list_move(&dev->power.entry, &dpm_noirq_list);
		put_device(dev);

		if (pm_wakeup_pending()) {
		error = -EBUSY;
		break;
		}
		}
		mutex_unlock(&dpm_list_mtx);
		if (error)
		@@ -962,6 +967,11 @@ static int dpm_suspend_late(pm_message_t state)
		if (!list_empty(&dev->power.entry))
		list_move(&dev->power.entry, &dpm_late_early_list);
		put_device(dev);

		if (pm_wakeup_pending()) {
		error = -EBUSY;
		break;
		}
		}
		mutex_unlock(&dpm_list_mtx);
		if (error)