From 122a5e3b8455f88fef4e050a229c4625a9a7c6ec Mon Sep 17 00:00:00 2001
From: Stijn Tintel <stijn@linux-ipv6.be>
Date: Wed, 23 Nov 2022 17:20:43 +0200
Subject: [PATCH] Revert "sysupgrade: print errno on failure"

This commit was taken from one of my staging branches without my
knowledge. Testing exposed problems with strerror, and the commit
message was not updated to reflect the use of strerror either.

  Failed to exec upgraded: No error information

This reverts commit 039b88f75367203e540009cc97603b1bce3fafa6.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
---
 sysupgrade.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sysupgrade.c b/sysupgrade.c
index 96a29e9..fc588b0 100644
--- a/sysupgrade.c
+++ b/sysupgrade.c
@@ -19,10 +19,8 @@
 #include "sysupgrade.h"
 
 #include <ctype.h>
-#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 #include <unistd.h>
 
 #include <libubox/blobmsg.h>
@@ -105,7 +103,7 @@ void sysupgrade_exec_upgraded(const char *prefix, char *path,
 	execvp(argv[0], argv);
 
 	/* Cleanup on failure */
-	fprintf(stderr, "Failed to exec upgraded: %s\n", strerror(-errno));
+	fprintf(stderr, "Failed to exec upgraded.\n");
 	unsetenv("WDTFD");
 	watchdog_set_cloexec(true);
 	ret = chroot(".");