From fc897c641b5f26132b377c2d5df7ee18a0eedcd3 Mon Sep 17 00:00:00 2001
From: stefan schippers <stefan.schippers@gmail.com>
Date: Sun, 11 Jun 2023 07:24:00 +0200
Subject: [PATCH] fix a potential crash if a ngspice_probe.sym device is placed
 and live cursor annotation is enabled (this instance has no lab attribute)

---
 src/token.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/token.c b/src/token.c
index 778d60e2..cbcc2361 100644
--- a/src/token.c
+++ b/src/token.c
@@ -3421,7 +3421,9 @@ const char *translate(int inst, const char* s)
              ++path;
            }
            prepare_netlist_structs(0);
-           my_strdup2(_ALLOC_ID_, &net, expandlabel(xctx->inst[inst].lab, &multip));
+           if(xctx->inst[inst].lab) {
+             my_strdup2(_ALLOC_ID_, &net, expandlabel(xctx->inst[inst].lab, &multip));
+           }
            if(net == NULL || net[0] == '\0') {
              my_strdup2(_ALLOC_ID_, &net, net_name(inst, 0, &multip, 0, 0));
            }