fix(midi): safeguard for memory leak

Author: SuGlider

libraries/USB/src/USBMIDI.cpp

@@ -50,12 +50,15 @@ USBMIDI::USBMIDI() {
 
 // private function for setting a not null/empty MIDI device name limited to 32 characters
 void USBMIDI::setDeviceName(const char* name) {
+  printf("setName called");
     const uint8_t maxNameLength = 32; // tinyUSB Descriptor limit
     if (name != nullptr && strlen(name) > 0) {
       if (strlen(name) > maxNameLength) {
         log_w("USBMIDI: Device name too long, truncating to %d characters.", maxNameLength);
       }
-      midiUserDeviceName = new char[maxNameLength + 1]; // +1 for null-terminator
+      if (!midiUserDeviceName) {
+        midiUserDeviceName = new char[maxNameLength + 1]; // +1 for null-terminator
+      }
       if (midiUserDeviceName) {
         strncpy(midiUserDeviceName, name, maxNameLength);
         // Ensure null-termination when overflowing