diff --git a/src/fsfw/controller/ControllerBase.cpp b/src/fsfw/controller/ControllerBase.cpp
index 953dacb46..7a8b6bc41 100644
--- a/src/fsfw/controller/ControllerBase.cpp
+++ b/src/fsfw/controller/ControllerBase.cpp
@@ -26,7 +26,7 @@ ReturnValue_t ControllerBase::initialize() {
 
   MessageQueueId_t parentQueue = 0;
   if (parentId != objects::NO_OBJECT) {
-    SubsystemBase* parent = ObjectManager::instance()->get<SubsystemBase>(parentId);
+    auto* parent = ObjectManager::instance()->get<SubsystemBase>(parentId);
     if (parent == nullptr) {
       return RETURN_FAILED;
     }
@@ -52,7 +52,7 @@ MessageQueueId_t ControllerBase::getCommandQueue() const { return commandQueue->
 
 void ControllerBase::handleQueue() {
   CommandMessage command;
-  ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
+  ReturnValue_t result;
   for (result = commandQueue->receiveMessage(&command); result == RETURN_OK;
        result = commandQueue->receiveMessage(&command)) {
     result = modeHelper.handleModeCommand(&command);
@@ -73,20 +73,20 @@ void ControllerBase::handleQueue() {
   }
 }
 
-void ControllerBase::startTransition(Mode_t mode, Submode_t submode) {
+void ControllerBase::startTransition(Mode_t mode_, Submode_t submode_) {
   changeHK(this->mode, this->submode, false);
   triggerEvent(CHANGING_MODE, mode, submode);
-  this->mode = mode;
-  this->submode = submode;
+  mode = mode_;
+  submode = submode_;
   modeHelper.modeChanged(mode, submode);
   modeChanged(mode, submode);
   announceMode(false);
   changeHK(this->mode, this->submode, true);
 }
 
-void ControllerBase::getMode(Mode_t* mode, Submode_t* submode) {
-  *mode = this->mode;
-  *submode = this->submode;
+void ControllerBase::getMode(Mode_t* mode_, Submode_t* submode_) {
+  *mode_ = this->mode;
+  *submode_ = this->submode;
 }
 
 void ControllerBase::setToExternalControl() { healthHelper.setHealth(EXTERNAL_CONTROL); }
@@ -99,7 +99,7 @@ ReturnValue_t ControllerBase::performOperation(uint8_t opCode) {
   return RETURN_OK;
 }
 
-void ControllerBase::modeChanged(Mode_t mode, Submode_t submode) { return; }
+void ControllerBase::modeChanged(Mode_t mode_, Submode_t submode_) {}
 
 ReturnValue_t ControllerBase::setHealth(HealthState health) {
   switch (health) {
@@ -115,6 +115,6 @@ ReturnValue_t ControllerBase::setHealth(HealthState health) {
 HasHealthIF::HealthState ControllerBase::getHealth() { return healthHelper.getHealth(); }
 void ControllerBase::setTaskIF(PeriodicTaskIF* task_) { executingTask = task_; }
 
-void ControllerBase::changeHK(Mode_t mode, Submode_t submode, bool enable) {}
+void ControllerBase::changeHK(Mode_t mode_, Submode_t submode_, bool enable) {}
 
 ReturnValue_t ControllerBase::initializeAfterTaskCreation() { return HasReturnvaluesIF::RETURN_OK; }
diff --git a/src/fsfw/controller/ControllerBase.h b/src/fsfw/controller/ControllerBase.h
index 227b859bf..550659b82 100644
--- a/src/fsfw/controller/ControllerBase.h
+++ b/src/fsfw/controller/ControllerBase.h
@@ -24,21 +24,21 @@ class ControllerBase : public HasModesIF,
   static const Mode_t MODE_NORMAL = 2;
 
   ControllerBase(object_id_t setObjectId, object_id_t parentId, size_t commandQueueDepth = 3);
-  virtual ~ControllerBase();
+  ~ControllerBase() override;
 
   /** SystemObject override */
-  virtual ReturnValue_t initialize() override;
+  ReturnValue_t initialize() override;
 
-  virtual MessageQueueId_t getCommandQueue() const override;
+  [[nodiscard]] MessageQueueId_t getCommandQueue() const override;
 
   /** HasHealthIF overrides */
-  virtual ReturnValue_t setHealth(HealthState health) override;
-  virtual HasHealthIF::HealthState getHealth() override;
+  ReturnValue_t setHealth(HealthState health) override;
+  HasHealthIF::HealthState getHealth() override;
 
   /** ExecutableObjectIF overrides */
-  virtual ReturnValue_t performOperation(uint8_t opCode) override;
-  virtual void setTaskIF(PeriodicTaskIF *task) override;
-  virtual ReturnValue_t initializeAfterTaskCreation() override;
+  ReturnValue_t performOperation(uint8_t opCode) override;
+  void setTaskIF(PeriodicTaskIF *task) override;
+  ReturnValue_t initializeAfterTaskCreation() override;
 
  protected:
   /**
@@ -54,8 +54,8 @@ class ControllerBase : public HasModesIF,
    */
   virtual void performControlOperation() = 0;
 
-  virtual ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
-                                         uint32_t *msToReachTheMode) override = 0;
+  ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
+                                 uint32_t *msToReachTheMode) override = 0;
 
   const object_id_t parentId;
 
@@ -80,10 +80,10 @@ class ControllerBase : public HasModesIF,
 
   /** Mode helpers */
   virtual void modeChanged(Mode_t mode, Submode_t submode);
-  virtual void startTransition(Mode_t mode, Submode_t submode) override;
-  virtual void getMode(Mode_t *mode, Submode_t *submode) override;
-  virtual void setToExternalControl() override;
-  virtual void announceMode(bool recursive);
+  void startTransition(Mode_t mode, Submode_t submode) override;
+  void getMode(Mode_t *mode, Submode_t *submode) override;
+  void setToExternalControl() override;
+  void announceMode(bool recursive) override;
   /** HK helpers */
   virtual void changeHK(Mode_t mode, Submode_t submode, bool enable);
 };
diff --git a/src/fsfw/controller/ExtendedControllerBase.cpp b/src/fsfw/controller/ExtendedControllerBase.cpp
index 0dfd9dc7c..64b39a315 100644
--- a/src/fsfw/controller/ExtendedControllerBase.cpp
+++ b/src/fsfw/controller/ExtendedControllerBase.cpp
@@ -6,7 +6,7 @@ ExtendedControllerBase::ExtendedControllerBase(object_id_t objectId, object_id_t
       poolManager(this, commandQueue),
       actionHelper(this, commandQueue) {}
 
-ExtendedControllerBase::~ExtendedControllerBase() {}
+ExtendedControllerBase::~ExtendedControllerBase() = default;
 
 ReturnValue_t ExtendedControllerBase::executeAction(ActionId_t actionId,
                                                     MessageQueueId_t commandedBy,
@@ -31,7 +31,7 @@ ReturnValue_t ExtendedControllerBase::handleCommandMessage(CommandMessage *messa
 
 void ExtendedControllerBase::handleQueue() {
   CommandMessage command;
-  ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
+  ReturnValue_t result;
   for (result = commandQueue->receiveMessage(&command); result == RETURN_OK;
        result = commandQueue->receiveMessage(&command)) {
     result = actionHelper.handleActionMessage(&command);
diff --git a/src/fsfw/controller/ExtendedControllerBase.h b/src/fsfw/controller/ExtendedControllerBase.h
index 0c64f5b9a..b5583a880 100644
--- a/src/fsfw/controller/ExtendedControllerBase.h
+++ b/src/fsfw/controller/ExtendedControllerBase.h
@@ -18,16 +18,16 @@ class ExtendedControllerBase : public ControllerBase,
                                public HasLocalDataPoolIF {
  public:
   ExtendedControllerBase(object_id_t objectId, object_id_t parentId, size_t commandQueueDepth = 3);
-  virtual ~ExtendedControllerBase();
+  ~ExtendedControllerBase() override;
 
   /* SystemObjectIF overrides */
-  virtual ReturnValue_t initialize() override;
+  ReturnValue_t initialize() override;
 
-  virtual MessageQueueId_t getCommandQueue() const override;
+  [[nodiscard]] MessageQueueId_t getCommandQueue() const override;
 
   /* ExecutableObjectIF overrides */
-  virtual ReturnValue_t performOperation(uint8_t opCode) override;
-  virtual ReturnValue_t initializeAfterTaskCreation() override;
+  ReturnValue_t performOperation(uint8_t opCode) override;
+  ReturnValue_t initializeAfterTaskCreation() override;
 
  protected:
   LocalDataPoolManager poolManager;
@@ -39,32 +39,32 @@ class ExtendedControllerBase : public ControllerBase,
    * @param message
    * @return
    */
-  virtual ReturnValue_t handleCommandMessage(CommandMessage* message) = 0;
+  ReturnValue_t handleCommandMessage(CommandMessage* message) override = 0;
 
   /**
    * Periodic helper from ControllerBase, implemented by child class.
    */
-  virtual void performControlOperation() = 0;
+  void performControlOperation() override = 0;
 
   /* Handle the four messages mentioned above */
   void handleQueue() override;
 
   /* HasActionsIF overrides */
-  virtual ReturnValue_t executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
-                                      const uint8_t* data, size_t size) override;
+  ReturnValue_t executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
+                              const uint8_t* data, size_t size) override;
 
   /* HasLocalDatapoolIF overrides */
-  virtual LocalDataPoolManager* getHkManagerHandle() override;
-  virtual object_id_t getObjectId() const override;
-  virtual uint32_t getPeriodicOperationFrequency() const override;
+  LocalDataPoolManager* getHkManagerHandle() override;
+  [[nodiscard]] object_id_t getObjectId() const override;
+  [[nodiscard]] uint32_t getPeriodicOperationFrequency() const override;
 
-  virtual ReturnValue_t initializeLocalDataPool(localpool::DataPool& localDataPoolMap,
-                                                LocalDataPoolManager& poolManager) override = 0;
-  virtual LocalPoolDataSetBase* getDataSetHandle(sid_t sid) override = 0;
+  ReturnValue_t initializeLocalDataPool(localpool::DataPool& localDataPoolMap,
+                                        LocalDataPoolManager& poolManager) override = 0;
+  LocalPoolDataSetBase* getDataSetHandle(sid_t sid) override = 0;
 
   // Mode abstract functions
-  virtual ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
-                                         uint32_t* msToReachTheMode) override = 0;
+  ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
+                                 uint32_t* msToReachTheMode) override = 0;
 };
 
 #endif /* FSFW_CONTROLLER_EXTENDEDCONTROLLERBASE_H_ */