From 3b7cb8275a447773b48bea093bdc801c3f484ad6 Mon Sep 17 00:00:00 2001
From: Nathan Stewart <therealnathanstewart@gmail.com>
Date: Tue, 6 Sep 2016 20:14:25 -0400
Subject: Fixes 7004 - Ardour crash on Just Quit when AudioEngine is stopped.
 AudioEngine::stop() if running() is not true and _backend->stop() is true,
 mutex was being unlocked without being locked.

---
 libs/ardour/audioengine.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libs/ardour/audioengine.cc')

diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index 30c2113c06..2ca80e3eee 100644
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -906,7 +906,9 @@ AudioEngine::stop (bool for_latency)
 		stop_engine = false;
 	} else {
 		if (_backend->stop ()) {
-			pl.release ();
+			if (pl.locked ()) { 
+                            pl.release ();
+                        }
 			return -1;
 		}
 	}
-- 
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