acpi: fix compile error with ACPI && !ACPI_SYSTEM

Fix build error if ACPI && !ACPI_SYSTEM as
bus.c depended on event.c

Signed-off-by Andreas Herrmann <[email protected]>

---
 drivers/acpi/bus.c   |    2 +-
 drivers/acpi/event.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

drivers/acpi/bus.c +1 -1

index e5084ec..b4a9ea5 100644
@@ -281,7 +281,7 @@ static DEFINE_SPINLOCK(acpi_bus_event_lock);
 LIST_HEAD(acpi_bus_event_list);
 DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
 
-extern int event_is_open;
+int event_is_open = 0;
 
 int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
 {

drivers/acpi/event.c +1 -1

index 3b23562..15886c1 100644
@@ -17,7 +17,7 @@ ACPI_MODULE_NAME("event");
 
 /* Global vars for handling event proc entry */
 static DEFINE_SPINLOCK(acpi_system_event_lock);
-int event_is_open = 0;
+extern int event_is_open;
 extern struct list_head acpi_bus_event_list;
 extern wait_queue_head_t acpi_bus_event_queue;