From 7d6c9c3085b4f3603bee6275525e592b2b475395 Mon Sep 17 00:00:00 2001
From: Jan Lentfer <jan.lentfer@web.de>
Date: Fri, 21 Sep 2018 09:25:17 +0200
Subject: [PATCH] LCXL: Fix a crash on exit

---
 libs/surfaces/launch_control_xl/launch_control_xl.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libs/surfaces/launch_control_xl/launch_control_xl.cc b/libs/surfaces/launch_control_xl/launch_control_xl.cc
index 35d56298d3..15bd40580b 100644
--- a/libs/surfaces/launch_control_xl/launch_control_xl.cc
+++ b/libs/surfaces/launch_control_xl/launch_control_xl.cc
@@ -706,7 +706,7 @@ LaunchControlXL::set_state (const XMLNode & node, int version)
 void
 LaunchControlXL::port_registration_handler ()
 {
-	if (!_async_in || !_async_out) {
+	if (!_async_in || !_async_out || !_input_port || !_output_port) {
 		/* ports not registered yet */
 		return;
 	}
@@ -748,7 +748,7 @@ bool
 LaunchControlXL::connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boost::weak_ptr<ARDOUR::Port>, std::string name2, bool yn)
 {
 	DEBUG_TRACE (DEBUG::LaunchControlXL, "LaunchControlXL::connection_handler start\n");
-	if (!_input_port || !_output_port) {
+	if (!_async_in || !_async_out) {
 		return false;
 	}