From 4fdd03892d1d1846c87589bf4e842f2c9cb5a6d7 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sat, 13 Feb 2016 00:51:17 +0100
Subject: [PATCH] add NULL check for VST audioMasterSizeWindow

---
 libs/ardour/session_vst.cc | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/libs/ardour/session_vst.cc b/libs/ardour/session_vst.cc
index 2aed71aa9c..96dc4115c7 100644
--- a/libs/ardour/session_vst.cc
+++ b/libs/ardour/session_vst.cc
@@ -318,9 +318,11 @@ intptr_t Session::vst_callback (
 
 	case audioMasterSizeWindow:
 		SHOW_CALLBACK ("audioMasterSizeWindow");
-		plug->state()->width = index;
-		plug->state()->height = value;
-		plug->state()->want_resize = 1;
+		if (plug && plug->state()) {
+			plug->state()->width = index;
+			plug->state()->height = value;
+			plug->state()->want_resize = 1;
+		}
 		return 0;
 
 	case audioMasterGetSampleRate: