From f1d77844158cf39bb683c20bd49b3abbc80a75c6 Mon Sep 17 00:00:00 2001
From: Stefan Rueger <stefan.rueger@urclocks.com>
Date: Thu, 25 Apr 2024 19:33:24 +0100
Subject: [PATCH] Ensure avr_signature()'s LIBAVRDUDE_EXIT return exits in
 main.c

---
 src/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main.c b/src/main.c
index 54fd1f42..690403f3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1554,6 +1554,10 @@ skipopen:
     usleep(waittime);
     if (init_ok) {
       rc = avr_signature(pgm, p);
+      if (rc == LIBAVRDUDE_EXIT) {
+        exitrc = 0;
+        goto main_exit;
+      }
       if (rc != LIBAVRDUDE_SUCCESS) {
         if (rc == LIBAVRDUDE_SOFTFAIL && (p->prog_modes & PM_UPDI) && attempt < 1) {
           attempt++;