ACPI / PM: acpi_hibernation_enter() need not switch interrupts off

The function acpi_hibernation_enter() is always called with
interrupts off, so it doesn't need to switch them off and on.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 0a81bf1..84f5714 100644 (file)
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -457,16 +457,13 @@ static int acpi_hibernation_begin(void)
 static int acpi_hibernation_enter(void)
 {
        acpi_status status = AE_OK;
-       unsigned long flags = 0;
 
        ACPI_FLUSH_CPU_CACHE();
 
-       local_irq_save(flags);
        /* This shouldn't return.  If it returns, we have a problem */
        status = acpi_enter_sleep_state(ACPI_STATE_S4);
        /* Reprogram control registers and execute _BFS */
        acpi_leave_sleep_state_prep(ACPI_STATE_S4);
-       local_irq_restore(flags);
 
        return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }