TTS: Fix use of virtual function in TTSMan destructor

TextToSpeechManager::freeVoiceData was called while the virtual function
table pointer was already reset by the parent class destructor.

3 files changed, 8 insertions, 0 deletions

diff --git a/backends/text-to-speech/linux/linux-text-to-speech.cpp b/backends/text-to-speech/linux/linux-text-to-speech.cpp
index 5943b69f49..b4a0d8c393 100644
--- a/backends/text-to-speech/linux/linux-text-to-speech.cpp
+++ b/backends/text-to-speech/linux/linux-text-to-speech.cpp
@@ -127,6 +127,9 @@ void SpeechDispatcherManager::init() {
 
 SpeechDispatcherManager::~SpeechDispatcherManager() {
 	stop();
+
+	clearState();
+
 	if (_connection != 0)
 		spd_close(_connection);
 	if (_threadCreated)
diff --git a/backends/text-to-speech/macosx/macosx-text-to-speech.mm b/backends/text-to-speech/macosx/macosx-text-to-speech.mm
index 72f56f91be..4d232f3b95 100644
--- a/backends/text-to-speech/macosx/macosx-text-to-speech.mm
+++ b/backends/text-to-speech/macosx/macosx-text-to-speech.mm
@@ -66,6 +66,8 @@ MacOSXTextToSpeechManager::MacOSXTextToSpeechManager() : Common::TextToSpeechMan
 }
 
 MacOSXTextToSpeechManager::~MacOSXTextToSpeechManager() {
+	clearState();
+
 	[synthesizer release];
 	[synthesizerDelegate release];
 }
diff --git a/backends/text-to-speech/windows/windows-text-to-speech.cpp b/backends/text-to-speech/windows/windows-text-to-speech.cpp
index 9f4ecf742a..a398200bad 100644
--- a/backends/text-to-speech/windows/windows-text-to-speech.cpp
+++ b/backends/text-to-speech/windows/windows-text-to-speech.cpp
@@ -120,6 +120,9 @@ void WindowsTextToSpeechManager::init() {
 
 WindowsTextToSpeechManager::~WindowsTextToSpeechManager() {
 	stop();
+
+	clearState();
+
 	if (_thread != NULL) {
 		WaitForSingleObject(_thread, INFINITE);
 		CloseHandle(_thread);