From f188b02a93cd33a8101aee69df51faefd8fb92da Mon Sep 17 00:00:00 2001
From: "andrey.bychkov" <andrey@signalmodelling.ru>
Date: Wed, 5 Aug 2026 23:56:10 +0300
Subject: [PATCH] =?UTF-8?q?fix:=20addDevice=20deletes=20read=20thread=20wi?=
 =?UTF-8?q?thout=20stopAndWait=20=E2=80=94=20race=20on=20dev=20close/open?=
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---
 libs/main/io_utils/piconnection.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/main/io_utils/piconnection.cpp b/libs/main/io_utils/piconnection.cpp
index 2e0e407f..50f6e565 100644
--- a/libs/main/io_utils/piconnection.cpp
+++ b/libs/main/io_utils/piconnection.cpp
@@ -1000,6 +1000,7 @@ PIIODevice * PIConnection::DevicePool::addDevice(PIConnection * parent, const PI
 	if (pmode == mode || pmode == PIIODevice::ReadWrite) return dd->dev;
 	if ((mode & PIIODevice::ReadOnly) > 0) {
 		if (dd->rthread) {
+			dd->rthread->stopAndWait();
 			delete dd->rthread;
 			dd->rthread = nullptr;
 			dd->started = false;