From 7af2edaca0eeb7c12d1b2d2a1f56a6f525272afd Mon Sep 17 00:00:00 2001
From: Stefan Rueger <stefan.rueger@urclocks.com>
Date: Mon, 22 Apr 2024 15:47:52 +0100
Subject: [PATCH] Render double teardown() harmless in jtag3

---
 src/jtag3.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/jtag3.c b/src/jtag3.c
index 9e6e6a15..a5e1807d 100644
--- a/src/jtag3.c
+++ b/src/jtag3.c
@@ -142,6 +142,7 @@ void jtag3_setup(PROGRAMMER *pgm) {
 
 void jtag3_teardown(PROGRAMMER *pgm) {
   mmt_free(pgm->cookie);
+  pgm->cookie = NULL;
 }