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PCI / PM: Fix D3/D3cold/D4 messages printed by acpi_pci_set_power_state() 

If a PCI device is put into D3_cold by acpi_bus_set_power(),
the message printed by acpi_pci_set_power_state() says that its
power state has been changed to D4, which doesn't make sense.
In turn, if the device is put into D3_hot, the message simply
says "D3" without specifying the variant of the D3 state.

Fix this by using the pci_power_name() macro for printing the state
name instead of building it from the numeric value corresponding to
the given state directly.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Rafael J. Wysocki 2012-08-04 23:27:32 +02:00 committed by Bjorn Helgaas
parent 0d7614f09c
commit 3d0882c0d1
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/pci-acpi.c
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@ -266,8 +266,8 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
}
if (!error)
dev_printk(KERN_INFO, &dev->dev,
"power state changed by ACPI to D%d\n", state);
dev_info(&dev->dev, "power state changed by ACPI to %s\n",
pci_power_name(state));
return error;
}