Merge pull request #11121 from RandomShaper/fix-errors-at-exit-2.1

Fix errors at exit (2.1)

drivers/wasapi/audio_driver_wasapi.cpp

@@ -337,6 +337,8 @@ void AudioDriverWASAPI::finish() {
 		memdelete(mutex);
 		mutex = NULL;
 	}
+
+	samples_in.clear();
 }
 
 AudioDriverWASAPI::AudioDriverWASAPI() {