PCI/PM: Expand description of pci_set_power_state() (ab4b8a47) · Commits · 戴 / test

Add two reasons for returning 0 value to the description of pci_set_power_state() to include the cases when: - the transition is to D1 or D2 but D1 and D2 are not supported - the transition is to D3 but D3 is not supported Signed-off-by:

Piotr Gregor <piotrgregor@rsyncme.org> Signed-off-by:

Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/pci.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -892,7 +892,9 @@ EXPORT_SYMBOL_GPL(__pci_complete_power_transition);
		* -EINVAL if the requested state is invalid.
		* -EIO if device does not support PCI PM or its PM capabilities register has a
		* wrong version, or device doesn't support the requested state.
		* 0 if the transition is to D1 or D2 but D1 and D2 are not supported.
		* 0 if device already is in the requested state.
		* 0 if the transition is to D3 but D3 is not supported.
		* 0 if device's power state has been successfully changed.
		*/
		int pci_set_power_state(struct pci_dev *dev, pci_power_t state)

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