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ACPI / PM: Call acpi_save_state_mem() right before low-level suspend 

Since acpi_save_state_mem() is only called by acpi_suspend_enter()
if the target sleep state is S3, it's better to call it under the
switch (acpi_state), right before do_suspend_lowlevel().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
hifive-unleashed-5.1
Rafael J. Wysocki 2011-02-08 23:42:09 +01:00
parent 7a63f08b2b
commit 979f11b060
1 changed files with 4 additions and 8 deletions
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12
drivers/acpi/sleep.c
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@ -244,17 +244,10 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
{
acpi_status status = AE_OK;
u32 acpi_state = acpi_target_sleep_state;
int error;
ACPI_FLUSH_CPU_CACHE();
/* Do arch specific saving of state. */
if (acpi_state == ACPI_STATE_S3) {
int error = acpi_save_state_mem();
if (error)
return error;
}
switch (acpi_state) {
case ACPI_STATE_S1:
barrier();
@ -262,6 +255,9 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
break;
case ACPI_STATE_S3:
error = acpi_save_state_mem();
if (error)
return error;
do_suspend_lowlevel();
pr_info(PREFIX "Low-level resume complete\n");
break;