From bedfaed6c6cef06abf0914f875e6b5616fe886de Mon Sep 17 00:00:00 2001
From: Stefan Rueger <stefan.rueger@urclocks.com>
Date: Mon, 22 Apr 2024 15:17:45 +0100
Subject: [PATCH] return LIBAVRDUDE_EXIT instead of exit(0)

---
 src/libavrdude.h | 1 +
 src/linuxspi.c   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libavrdude.h b/src/libavrdude.h
index 453b22a0..60cf4ebf 100644
--- a/src/libavrdude.h
+++ b/src/libavrdude.h
@@ -59,6 +59,7 @@ typedef uint32_t pinmask_t;
 #define LIBAVRDUDE_NOTSUPPORTED (-2) // operation not supported
 #define LIBAVRDUDE_SOFTFAIL (-3) // returned, eg, by avr_signature() if caller
                                  // might proceed with chip erase
+#define LIBAVRDUDE_EXIT (-4)     // End all operations in this session
 
 /* formerly lists.h */
 
diff --git a/src/linuxspi.c b/src/linuxspi.c
index caac1554..550c3b35 100644
--- a/src/linuxspi.c
+++ b/src/linuxspi.c
@@ -417,7 +417,7 @@ static int linuxspi_parseextparams(const PROGRAMMER *pgm, const LISTID extparms)
       msg_error("%s -c %s extended options:\n", progname, pgmid);
       msg_error("  -xdisable_no_cs Do not use the SPI_NO_CS bit for the SPI driver\n");
       msg_error("  -xhelp          Show this help menu and exit\n");
-      return LIBAVRDUDE_SOFTFAIL;
+      return LIBAVRDUDE_EXIT;
     }
 
     pmsg_error("invalid extended parameter '%s'\n", extended_param);