diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/sleep/main.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 31e8e58e1ce..10db8991bd1 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -283,22 +283,34 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { #ifdef CONFIG_HIBERNATION static int acpi_hibernation_begin(void) { + int error; + acpi_target_sleep_state = ACPI_STATE_S4; - return 0; + if (new_pts_ordering) + return 0; + + error = acpi_sleep_prepare(ACPI_STATE_S4); + if (error) + acpi_target_sleep_state = ACPI_STATE_S0; + else + acpi_sleep_finish_wake_up = true; + + return error; } static int acpi_hibernation_prepare(void) { - int error; - - error = acpi_sleep_prepare(ACPI_STATE_S4); - if (error) - return error; + if (new_pts_ordering) { + int error = acpi_sleep_prepare(ACPI_STATE_S4); - if (!ACPI_SUCCESS(acpi_hw_disable_all_gpes())) - error = -EFAULT; + if (error) { + acpi_target_sleep_state = ACPI_STATE_S0; + return error; + } + acpi_sleep_finish_wake_up = true; + } - return error; + return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT; } static int acpi_hibernation_enter(void) @@ -339,15 +351,17 @@ static void acpi_hibernation_finish(void) acpi_set_firmware_waking_vector((acpi_physical_address) 0); acpi_target_sleep_state = ACPI_STATE_S0; + acpi_sleep_finish_wake_up = false; } static void acpi_hibernation_end(void) { /* * This is necessary in case acpi_hibernation_finish() is not called - * during a failing transition to the sleep state. + * directly during a failing transition to the sleep state. */ - acpi_target_sleep_state = ACPI_STATE_S0; + if (acpi_sleep_finish_wake_up) + acpi_hibernation_finish(); } static int acpi_hibernation_pre_restore(void) |