[ACPI] acpi_video_device_write_state() now works

http://bugzilla.kernel.org/show_bug.cgi?id=5060

Signed-off-by: Luming Yu <luming.yu@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index b9132b5ac0f0..e383d6109ae1 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -297,11 +297,12 @@ acpi_video_device_set_state(struct acpi_video_device *device, int state)
         int status;
         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
         struct acpi_object_list args = { 1, &arg0 };
+        unsigned long ret;
 
         ACPI_FUNCTION_TRACE("acpi_video_device_set_state");
 
         arg0.integer.value = state;
-        status = acpi_evaluate_integer(device->handle, "_DSS", &args, NULL);
+        status = acpi_evaluate_integer(device->handle, "_DSS", &args, &ret);
 
         return_VALUE(status);
 }