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@@ -893,7 +893,9 @@ EXPORT_SYMBOL_GPL(__pci_complete_power_transition);
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* -EINVAL if the requested state is invalid.
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* -EIO if device does not support PCI PM or its PM capabilities register has a
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* wrong version, or device doesn't support the requested state.
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+ * 0 if the transition is to D1 or D2 but D1 and D2 are not supported.
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* 0 if device already is in the requested state.
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+ * 0 if the transition is to D3 but D3 is not supported.
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* 0 if device's power state has been successfully changed.
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*/
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int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
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Bjorn Helgaas