Some debug output when the getparam ioctl is called with an unknown parameter.

shared-core/radeon_state.c

@@ -3035,6 +3035,7 @@ static int radeon_cp_getparam(DRM_IOCTL_ARGS)
 			value = RADEON_CARD_PCI;
 		break;
 	default:
+		DRM_DEBUG( "Invalid parameter %d\n", param.param );
 		return DRM_ERR(EINVAL);
 	}