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PM / sleep: Check pm_wakeup_pending() in __device_suspend_noirq()

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Restore the pm_wakeup_pending() check in __device_suspend_noirq()
removed by commit eed4d47efe (ACPI / sleep: Ignore spurious SCI
wakeups from suspend-to-idle) as that allows the function to return
earlier if there's a wakeup event pending already (so that it may
spend less time on carrying out operations that will be reversed
shortly anyway) and rework the main suspend-to-idle loop to take
that optimization into account.

Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Rafael J. Wysocki 2017-07-21 02:12:10 +02:00
commit 9a3ebe3523
2 changed files with 21 additions and 3 deletions
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5
drivers/base/power/main.c
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@ -1105,6 +1105,11 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a
if (async_error)
goto Complete;
if (pm_wakeup_pending()) {
async_error = -EBUSY;
goto Complete;
}
if (dev->power.syscore || dev->power.direct_complete)
goto Complete;