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>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 0a81bf11f473..84f57143ad7c 100644
--- 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;
 }