From 3e1669b085b0bfcab097c1457c350c0a5d9c4779 Mon Sep 17 00:00:00 2001
From: Roland Aigner <roland.aigner@fh-hagenberg.at>
Date: Mon, 30 Sep 2024 14:14:09 +0200
Subject: [PATCH] fixed unbalanced CoInitialize/CoUninitialize call

---
 include/asiolist.cpp | 8 ++++++--
 include/asiolist.h   | 3 +++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/include/asiolist.cpp b/include/asiolist.cpp
index f3fcf593..f5dc7e63 100644
--- a/include/asiolist.cpp
+++ b/include/asiolist.cpp
@@ -193,14 +193,18 @@ AsioDriverList::AsioDriverList ()
 		pdl = pdl->next;
 	}
 
-	if (numdrv) CoInitialize(0);	// initialize COM
+	coInitialized_ = false;
+	if (numdrv)	{
+		HRESULT hr = CoInitialize(0);	// initialize COM
+		if( !FAILED( hr ) ) coInitialized_ = true;
+	}
 }
 
 AsioDriverList::~AsioDriverList ()
 {
 	if (numdrv) {
 		deleteDrvStruct(lpdrvlist);
-		CoUninitialize();
+		if( coInitialized_ ) CoUninitialize(); // balanced call.
 	}
 }
 
diff --git a/include/asiolist.h b/include/asiolist.h
index 01c64f0b..f46cd0a0 100644
--- a/include/asiolist.h
+++ b/include/asiolist.h
@@ -39,6 +39,9 @@ class AsioDriverList {
 	// or use directly access
 	LPASIODRVSTRUCT	lpdrvlist;
 	int				numdrv;
+
+private:
+	bool coInitialized_;
 };
 
 typedef class AsioDriverList *LPASIODRIVERLIST;