From bbe54f47ca50f66967e18389f7843298df57886b Mon Sep 17 00:00:00 2001
From: Paul Licameli <paul.licameli@audacityteam.org>
Date: Thu, 24 May 2018 18:37:56 -0400
Subject: [PATCH] a null check would have fixed crash at 902e1ab0a1 when
 recording...

... a mono channel into the left side of a stereo track; crash was in drawing;

other code now prevents such recording, but that prevention might be revised
again.
---
 src/TrackPanel.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/TrackPanel.cpp b/src/TrackPanel.cpp
index 979efff8a..100c2414e 100644
--- a/src/TrackPanel.cpp
+++ b/src/TrackPanel.cpp
@@ -1866,7 +1866,7 @@ void TrackPanel::DrawEverythingElse(TrackPanelDrawingContext &context,
       bool skipBorder = false;
       Track *l = t->GetLink();
 
-      if (t->GetLinked()) {
+      if (l && t->GetLinked()) {
          rect.height += l->GetHeight();
       }
       else if (l && trackRect.y >= 0) {