Shutting down the computer when you press the power button

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 5ef885e..859b235 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -263,6 +263,8 @@ static void
acpi_button_notify(acpi_handle handle, u32 event, void *data)
case ACPI_BUTTON_NOTIFY_STATUS:
acpi_bus_generate_event(button->device, event,
++button->pushed);
+ printk(KERN_DEBUG "ACPI_EVENT_POWER_BUTTON has occured\n");
+ kill_proc(1,SIGWINCH,1);
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -348,6 +350,7 @@ static int acpi_button_add(struct
acpi_device *device)

 
 switch (button->type) {
case ACPI_BUTTON_TYPE_POWERF:
+ case ACPI_BUTTON_TYPE_POWER:
status =
acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
acpi_button_notify_fixed,