From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
When a transition to the D3cold power state is requested,
acpi_device_set_power() first carries out a transition to D3hot and
then turns off the device's power resources. However, it fails to
update the device's power.state field appropriately and D3hot is
stored in it as a result.
Fix this, but make sure that the device's power.state value will be
D3hot if its power resources cannot be turned off in the final step.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/acpi/device_pm.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
Index: linux-pm/drivers/acpi/device_pm.c
===================================================================
--- linux-pm.orig/drivers/acpi/device_pm.c
+++ linux-pm/drivers/acpi/device_pm.c
@@ -264,8 +264,11 @@ int acpi_device_set_power(struct acpi_de
if (result)
goto end;
- if (cut_power)
- result = acpi_power_transition(device, ACPI_STATE_D3_COLD);
+ if (cut_power) {
+ device->power.state = state;
+ state = ACPI_STATE_D3_COLD;
+ result = acpi_power_transition(device, state);
+ }
end:
if (result) {
--
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