From 4b75ed249ea914feff6e711301c53e21b858cf15 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sat, 27 Jul 2024 22:25:09 +0200
Subject: [PATCH] Unregister ports directly after RCU update

see also 2e23ec4422c3. This fixes a bug where some ports
remain in used (shared_ptr<Port>) by the RCUManager, even
after the port is removed from the port_map.

This can lead to issues when the port is re-registered later.
---
 libs/ardour/io.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/ardour/io.cc b/libs/ardour/io.cc
index 4a02c155cc..b334fbc625 100644
--- a/libs/ardour/io.cc
+++ b/libs/ardour/io.cc
@@ -445,10 +445,12 @@ IO::ensure_ports_locked (ChanCount count, bool clear, bool& changed)
 		/* end of RCUWriter scope */
 	}
 
+
 	if (changed) {
 		const ChanCount n_ports = ports ()->count ();
 		PortCountChanged (n_ports); /* EMIT SIGNAL */
 		_session.set_dirty ();
+		_ports.flush ();
 	}
 
 	if (clear) {