From e27fa138376a76b0138f841ecbba0a1fb61c3164 Mon Sep 17 00:00:00 2001
From: "Robert M. Thomson" <rmt-git@corporatism.org>
Date: Tue, 6 Oct 2026 20:22:28 +0200
Subject: [PATCH] fix: release temporary factory host application references in
 VST3

Fixes #547
---
 distrho/src/DistrhoPluginVST3.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/distrho/src/DistrhoPluginVST3.cpp b/distrho/src/DistrhoPluginVST3.cpp
index 17b81b8f8..6a584c8f2 100644
--- a/distrho/src/DistrhoPluginVST3.cpp
+++ b/distrho/src/DistrhoPluginVST3.cpp
@@ -4800,6 +4800,8 @@ struct dpf_factory : v3_plugin_factory_cpp {
         {
             dpf_component** const componentptr = new dpf_component*;
             *componentptr = new dpf_component(hostApplication);
+            if (hostApplication != nullptr)
+                v3_cpp_obj_unref(hostApplication);
             *instance = static_cast<void*>(componentptr);
             return V3_OK;
         }
@@ -4811,6 +4813,8 @@ struct dpf_factory : v3_plugin_factory_cpp {
         {
             dpf_edit_controller** const controllerptr = new dpf_edit_controller*;
             *controllerptr = new dpf_edit_controller(hostApplication);
+            if (hostApplication != nullptr)
+                v3_cpp_obj_unref(hostApplication);
             *instance = static_cast<void*>(controllerptr);
             return V3_OK;
         }