From 9486b4e6cb8d202da1ad875fbfc472b3b4614f2f Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Fri, 9 Jun 2023 19:15:58 +0200
Subject: [PATCH] Fix port-disconnection label w/pipewire (#9355, #9364)

---
 gtk2_ardour/io_button.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtk2_ardour/io_button.cc b/gtk2_ardour/io_button.cc
index 020cc23b67..023c9258ac 100644
--- a/gtk2_ardour/io_button.cc
+++ b/gtk2_ardour/io_button.cc
@@ -375,6 +375,9 @@ IOButtonBase::set_label (IOButtonBase& self, ARDOUR::Session& session, std::shar
 		     ++port) {
 			port_connections.clear ();
 			port->get_connections (port_connections);
+			if (port_connections.empty ()) {
+				continue;
+			}
 			string connection = port_connections.front ();
 
 			vector<string>::iterator i = connections.begin ();