From 19af86ece2d40729348b6ae6cb73d4e370115040 Mon Sep 17 00:00:00 2001
From: Len Ovens <len@ovenwerks.net>
Date: Mon, 18 Jan 2016 08:58:07 -0800
Subject: [PATCH] Mackie Control: Fix crash in multi-surface setup when
 add/remove tracks.

---
 libs/surfaces/mackie/surface.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/surfaces/mackie/surface.cc b/libs/surfaces/mackie/surface.cc
index acc997e652..942fb809a9 100644
--- a/libs/surfaces/mackie/surface.cc
+++ b/libs/surfaces/mackie/surface.cc
@@ -369,7 +369,9 @@ Surface::init_strips (uint32_t n)
 void
 Surface::master_monitor_may_have_changed ()
 {
-	setup_master ();
+	if (_number == _mcp.device_info().master_position()) {
+		setup_master ();
+	}
 }
 
 void