static int set_overlay_params(struct bm2835_mmal_dev *dev,
                              struct vchiq_mmal_port *port)
 {
-       int ret;
        struct mmal_parameter_displayregion prev_config = {
        .set = MMAL_DISPLAY_SET_LAYER | MMAL_DISPLAY_SET_ALPHA |
            MMAL_DISPLAY_SET_DEST_RECT | MMAL_DISPLAY_SET_FULLSCREEN,
                      .height = dev->overlay.w.height,
                      },
        };
-       ret = vchiq_mmal_port_parameter_set(dev->instance, port,
-                                           MMAL_PARAMETER_DISPLAYREGION,
-                                           &prev_config, sizeof(prev_config));
-
-       return ret;
+       return vchiq_mmal_port_parameter_set(dev->instance, port,
+                                            MMAL_PARAMETER_DISPLAYREGION,
+                                            &prev_config, sizeof(prev_config));
 }
 
 /* overlay ioctl */