Simplify codes without unnecessary return variables

Author: erwinpan1

examples/chef/common/clusters/audio-output/AudioOutputManager.cpp

@@ -58,35 +58,31 @@ CHIP_ERROR AudioOutputManager::HandleGetOutputList(AttributeValueEncoder & aEnco
 
 bool AudioOutputManager::HandleRenameOutput(const uint8_t & index, const chip::CharSpan & name)
 {
-    bool audioOutputRenamed = false;
-
     for (OutputInfoType & output : mOutputs)
     {
         if (output.index == index)
         {
-            audioOutputRenamed = true;
             const size_t len   = std::min(mNameLenMax, name.size());
             memcpy(mOutputName[index], name.data(), len);
             output.name = mOutputName[index];
-            return audioOutputRenamed;
+            return true;
         }
     }
-    return audioOutputRenamed;
+
+    return false;
 }
 
 bool AudioOutputManager::HandleSelectOutput(const uint8_t & index)
 {
-    bool audioOutputSelected = false;
     for (OutputInfoType & output : mOutputs)
     {
         if (output.index == index)
         {
-            audioOutputSelected = true;
             mCurrentOutput      = index;
-            return audioOutputSelected;
+            return true;
         }
     }
 
-    return audioOutputSelected;
+    return false;
 }
 #endif // MATTER_DM_PLUGIN_AUDIO_OUTPUT_SERVER

examples/chef/common/clusters/channel/ChannelManager.cpp

@@ -186,7 +186,6 @@ void ChannelManager::HandleChangeChannel(CommandResponseHelper<ChangeChannelResp
 
 bool ChannelManager::HandleChangeChannelByNumber(const uint16_t & majorNumber, const uint16_t & minorNumber)
 {
-    bool channelChanged = false;
     uint16_t index      = 0;
     for (auto const & channel : mChannels)
     {
@@ -196,15 +195,14 @@ bool ChannelManager::HandleChangeChannelByNumber(const uint16_t & majorNumber, c
             // verify if channel changed by comparing values of current channel with the requested channel
             if (channel.minorNumber != mCurrentChannel.minorNumber || channel.majorNumber != mCurrentChannel.majorNumber)
             {
-                channelChanged       = true;
                 mCurrentChannelIndex = index;
                 mCurrentChannel      = channel;
-                return channelChanged;
+                return true;
             }
         }
         index++;
     }
-    return channelChanged;
+    return false;
 }
 
 bool ChannelManager::HandleSkipChannel(const int16_t & count)

examples/chef/common/clusters/media-input/MediaInputManager.cpp

@@ -56,18 +56,16 @@ uint8_t MediaInputManager::HandleGetCurrentInput()
 
 bool MediaInputManager::HandleSelectInput(const uint8_t index)
 {
-    bool mediaInputSelected = false;
     for (InputInfoType & input : mInputs)
     {
         if (input.index == index)
         {
-            mediaInputSelected = true;
             mCurrentInput      = index;
-            return mediaInputSelected;
+            return true;
         }
     }
 
-    return mediaInputSelected;
+    return false;
 }
 
 bool MediaInputManager::HandleShowInputStatus()
@@ -92,20 +90,17 @@ bool MediaInputManager::HandleHideInputStatus()
 
 bool MediaInputManager::HandleRenameInput(const uint8_t index, const chip::CharSpan & name)
 {
-    bool mediaInputRenamed = false;
-
     for (InputInfoType & input : mInputs)
     {
         if (input.index == index)
         {
-            mediaInputRenamed = true;
             const size_t len  = std::min(mNameLenMax, name.size());
             memcpy(mInputName[index], name.data(), len);
             input.name = mInputName[index];
-            return mediaInputRenamed;
+            return true;
         }
     }
 
-    return mediaInputRenamed;
+    return false;
 }
 #endif // MATTER_DM_PLUGIN_MEDIA_INPUT_SERVER