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PCI PM: Check if the state has been saved before trying to restore it
Check if the standard configuration registers of a PCI device have been saved during suspend before trying to restore them during resume. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-By: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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@ -1421,7 +1421,7 @@ int pci_restore_standard_config(struct pci_dev *dev)
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dev->current_state = PCI_D0;
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Restore:
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return pci_restore_state(dev);
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return dev->state_saved ? pci_restore_state(dev) : 0;
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}
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/**
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