PCI / PM: Force devices to D0 in pci_pm_thaw_noirq()
It is incorrect to call pci_restore_state() for devices in low-power states (D1-D3), as that involves the restoration of MSI setup which requires MMIO to be operational and that is only the case in D0. However, pci_pm_thaw_noirq() may do that if the driver's "freeze" callbacks put the device into a low-power state, so fix it by making it force devices into D0 via pci_set_power_state() instead of trying to "update" their power state which is pointless. Fixes: e60514bd (PCI/PM: Restore the status of PCI devices across hibernation) Cc: 4.13+ <stable@vger.kernel.org> # 4.13+ Reported-by: Thomas Gleixner <tglx@linutronix.de> Reported-by: Maarten Lankhorst <dev@mblankhorst.nl> Tested-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Maarten Lankhorst <dev@mblankhorst.nl> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
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