From 3a908c76ef253b5d39ac6c121fe344b1bc3721cb Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Wed, 5 May 2021 10:17:15 +0200
Subject: [PATCH] Prevent crash, refName may be NULL

---
 src/frontend/outitf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/frontend/outitf.c b/src/frontend/outitf.c
index ca3bb132b..970926bfc 100644
--- a/src/frontend/outitf.c
+++ b/src/frontend/outitf.c
@@ -256,7 +256,7 @@ beginPlot(JOB *analysisPtr, CKTcircuit *circuitPtr, char *cktName, char *analNam
                             break;
                         }
                         /* generate a vector of real time information */
-                        else if (ft_ngdebug && eq(refName, "time") && eq(saves[i].name, "speedcheck")) {
+                        else if (ft_ngdebug && refName && eq(refName, "time") && eq(saves[i].name, "speedcheck")) {
                             addDataDesc(run, "speedcheck", IF_REAL, j, initmem);
                             savesused[i] = TRUE;
                             saves[i].used = 1;