From 5197200fb3267f5ac5133ffdadce907014cd2fdc Mon Sep 17 00:00:00 2001
From: Giles Atkinson <“gatk555@gmail.com”>
Date: Tue, 21 Mar 2023 21:01:06 +0000
Subject: [PATCH] Fix crash reported by Brian Taylor.  If "source" is used
 after analysis, the circuit is both deleted and destroyed. Beware of double
 frees.

---
 src/xspice/evt/evtsetup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/xspice/evt/evtsetup.c b/src/xspice/evt/evtsetup.c
index 761a40bba..62024531d 100644
--- a/src/xspice/evt/evtsetup.c
+++ b/src/xspice/evt/evtsetup.c
@@ -303,6 +303,7 @@ void Evt_purge_free_outputs(void)
 
     for (i = 0; i < g_evt_num_udn_types; ++i) {
         output_event = g_evt_udn_info[i]->free_list;
+        g_evt_udn_info[i]->free_list = NULL;
         while (output_event) {
             next = output_event->next;
             tfree(output_event->value);