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Power management fix for 5.3-rc3 

Fix recent regression affecting ACPI device power management.
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Merge tag 'pm-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix recent regression affecting ACPI device power management"

* tag 'pm-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PM: Fix regression in acpi_device_set_power()
alistair/sunxi64-5.4-dsi
Linus Torvalds 2019-08-02 08:55:28 -07:00
parent 75cdf416b3 42787ed796
commit 755f1fed27
1 changed files with 3 additions and 1 deletions
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4
drivers/acpi/device_pm.c
View File

@ -232,13 +232,15 @@ int acpi_device_set_power(struct acpi_device *device, int state)
if (device->power.flags.power_resources)
result = acpi_power_transition(device, target_state);
} else {
int cur_state = device->power.state;
if (device->power.flags.power_resources) {
result = acpi_power_transition(device, ACPI_STATE_D0);
if (result)
goto end;
}
if (device->power.state == ACPI_STATE_D0) {
if (cur_state == ACPI_STATE_D0) {
int psc;
/* Nothing to do here if _PSC is not present. */