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PCI PM: Fix hibernation breakage on EeePC 701

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Hibernation breaks on EeePC 701 as a result of attempting to put one
of its (driverless) devices into a low power state.  Avoid that by
not attepmting to power manage driverless devices during hibernation.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-and-tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Rafael J. Wysocki 2009-01-22 23:36:56 +01:00 committed by Jesse Barnes
parent 57064d213d
commit 545ffd58ad
1 changed files with 4 additions and 1 deletions
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5
drivers/pci/pci-driver.c
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@ -669,7 +669,10 @@ static int pci_pm_poweroff(struct device *dev)
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend(dev, PMSG_HIBERNATE);
if (drv && drv->pm && drv->pm->poweroff) {
if (!drv || !drv->pm)
return 0;
if (drv->pm->poweroff) {
error = drv->pm->poweroff(dev);
suspend_report_result(drv->pm->poweroff, error);
}