[sot_loader] Check if sot_Controller is NULL.

Author: olivier-stasse

src/sot_loader.cpp

@@ -199,13 +199,16 @@ void SotLoader::readControl(map<string, dgs::ControlValues> &controlValues) {
 }
 
 void SotLoader::setup() {
+  if (sotController_ == NULL) return;
   fillSensors(sensorsIn_);
   sotController_->setupSetSensors(sensorsIn_);
   sotController_->getControl(controlValues_);
   readControl(controlValues_);
 }
 
 void SotLoader::oneIteration() {
+  if (sotController_ == NULL) return;
+
   fillSensors(sensorsIn_);
   try {
     sotController_->nominalSetSensors(sensorsIn_);