ACPI: allow drivers to request both device and system notify events

[firefly-linux-kernel-4.4.55.git] / drivers / acpi / bus.c

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index ae862f1798dc9d59d1b1e7479a6252dec22a185c..cdfecc0a2ac67d36f7c61c447d2387c4b45c42e6 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -549,6 +549,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
 {
        int result = 0;
        struct acpi_device *device = NULL;
+       struct acpi_driver *driver;
 
        blocking_notifier_call_chain(&acpi_bus_notify_list,
                type, (void *)handle);
@@ -629,7 +630,10 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
                break;
        }
 
-       return;
+       driver = device->driver;
+       if (driver && driver->ops.notify &&
+           (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS))
+               driver->ops.notify(device, type);
 }
 
 /* --------------------------------------------------------------------------