From 79c1cfc1e0a6c083d87b7c3e9e342bf1f39d51f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Banaan=20Ananas?=
 <happppp@users.noreply.github.com>
Date: Thu, 10 Mar 2011 20:08:29 +0000
Subject: [PATCH] running an unavailable game with discrete sound would crash
 mame on exit because m_queue was uninitialized (still crashes on debug build
 tho?)

---
 src/emu/sound/discrete.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/emu/sound/discrete.c b/src/emu/sound/discrete.c
index 7eb28f9de7e..de6dff34752 100644
--- a/src/emu/sound/discrete.c
+++ b/src/emu/sound/discrete.c
@@ -888,7 +888,10 @@ discrete_sound_device::discrete_sound_device(running_machine &_machine, const di
 
 discrete_device::~discrete_device(void)
 {
-	osd_work_queue_free(m_queue);
+	if (m_queue)
+	{
+		osd_work_queue_free(m_queue);
+	}
 
 	if (m_profiling)
 	{