ACPI: PM: Fix regression in acpi_device_set_power()
Commit f850a48a ("ACPI: PM: Allow transitions to D0 to occur in special cases") overlooked the fact that acpi_power_transition() may change the power.state value for the target device and if that happens, it may confuse acpi_device_set_power() and cause it to omit the _PS0 evaluation which on some systems is necessary to change power states of devices from low-power to D0. Fix that by saving the current value of power.state for the target device before passing it to acpi_power_transition() and using the saved value in a subsequent check. Fixes: f850a48a ("ACPI: PM: Allow transitions to D0 to occur in special cases") Reported-by:Kai-Heng Feng <kai.heng.feng@canonical.com> Reported-by:
Mario Limonciello <mario.limonciello@dell.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by:
Kai-Heng Feng <kai.heng.feng@canonical.com> Tested-by:
Mario Limonciello <mario.limonciello@dell.com>
parent
609488bc
Please register or sign in to comment