M CHANGES → CHANGES

@@ -35,6 +35,7 @@ - SDL: Fix game crash check
  - SDL: Fix race condition with audio thread when starting
  - GB: Fix flickering when screen is strobed quickly
  - FFmpeg: Fix overflow and general issues with audio encoding
+ - Qt: Fix crash when changing audio settings after a game is closed
 Misc:
  - SDL: Remove scancode key input
  - GBA Video: Clean up unused timers

M src/platform/qt/GameController.cpp → src/platform/qt/GameController.cpp

@@ -654,6 +654,7 @@ delete[] m_drawContext;
 	delete[] m_frontBuffer;
 
 	m_threadContext.core->deinit(m_threadContext.core);
+	m_threadContext.core = nullptr;
 	m_gameOpen = false;
 }
 
@@ -1222,7 +1223,7 @@ }
 }
 
 void GameController::redoSamples(int samples) {
-	if (m_threadContext.core) {
+	if (m_gameOpen && m_threadContext.core) {
 		m_threadContext.core->setAudioBufferSize(m_threadContext.core, samples);
 	}
 	m_audioProcessor->inputParametersChanged();