From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Revert commit 3130497f5bab (ACPI / sleep: pm_power_off needs more
sanity checks to be installed) that breaks power ACPI power off on a
lot of systems, because it checks wrong registers.
Fixes: 3130497f5bab (ACPI / sleep: pm_power_off needs more sanity checks to be installed)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
Hi Linus,
Can you take this for 3.14-rc6 directly so that the breakage is not present
in that -rc, please?
I obviously trusted the author of commit 3130497f5bab too much which I shouldn't
have done. My bad and sorry about this mess.
Rafael
---
drivers/acpi/sleep.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
Index: linux-pm/drivers/acpi/sleep.c
===================================================================
--- linux-pm.orig/drivers/acpi/sleep.c
+++ linux-pm/drivers/acpi/sleep.c
@@ -807,12 +807,7 @@ int __init acpi_sleep_init(void)
acpi_sleep_hibernate_setup();
status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
- /*
- * Check both ACPI S5 object and ACPI sleep registers to
- * install pm_power_off_prepare/pm_power_off hook
- */
- if (ACPI_SUCCESS(status) && acpi_gbl_FADT.sleep_control.address
- && acpi_gbl_FADT.sleep_status.address) {
+ if (ACPI_SUCCESS(status)) {
sleep_states[ACPI_STATE_S5] = 1;
pm_power_off_prepare = acpi_power_off_prepare;
pm_power_off = acpi_power_off;
--
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