mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

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>
This commit is contained in:
Rafael J. Wysocki 2011-02-08 23:42:35 +01:00
parent f1a2003e22
commit aad83b1430
1 changed files with 0 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/acpi/sleep.c
View File

@ -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;
}