From ec63e655d849d0546fb4d735f8c43b98daf61f0d Mon Sep 17 00:00:00 2001
From: "andrey.bychkov" <andrey@signalmodelling.ru>
Date: Thu, 6 Aug 2026 10:19:07 +0300
Subject: [PATCH] fix(PIThread): remove spurious unlock() in _waitForFinish

The function called unlock() on thread_mutex without a matching
lock(), causing UB on Windows (releasing an unowned critical
section) or silently dropping a user-held lock.
---
 libs/main/thread/pithread.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libs/main/thread/pithread.cpp b/libs/main/thread/pithread.cpp
index 0f9aa389..23070bba 100644
--- a/libs/main/thread/pithread.cpp
+++ b/libs/main/thread/pithread.cpp
@@ -1080,7 +1080,6 @@ bool PIThread::_waitForFinish(PISystemTime max_tm) {
 	if (!running_) return true;
 #ifdef WINDOWS
 	if (!isExists(PRIVATE->thread)) {
-		unlock();
 		return true;
 	}
 #endif