From 8c30369119f40c780caa6b8c05e25bafafed90d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Barnab=C3=A1s=20P=C5=91cze?=
 <barnabas.pocze@ideasonboard.com>
Date: Wed, 13 Aug 2025 16:40:20 +0200
Subject: [PATCH] libcamera: software_isp: Clear pending async work
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Debayering is carried out on `ispWorkerThread_`. When stopping, the queued
work needs to be flushed or cancelled to ensure that the next time it starts,
it won't process stale data. So remove all messages targeting the `Debayer`
object on the worker thread.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Robert Mader <robert.mader@collabora.com>
---
 src/libcamera/software_isp/software_isp.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libcamera/software_isp/software_isp.cpp b/src/libcamera/software_isp/software_isp.cpp
index b7651b7d..fdadf79e 100644
--- a/src/libcamera/software_isp/software_isp.cpp
+++ b/src/libcamera/software_isp/software_isp.cpp
@@ -358,6 +358,7 @@ void SoftwareIsp::stop()
 {
 	ispWorkerThread_.exit();
 	ispWorkerThread_.wait();
+	ispWorkerThread_.removeMessages(debayer_.get());
 
 	Thread::current()->dispatchMessages(Message::Type::InvokeMessage, this);