From f885e96bd33a8a3133adf940bc7ba72e69af6149 Mon Sep 17 00:00:00 2001
From: Caleb Connolly <caleb@connolly.tech>
Date: Sat, 4 Jun 2022 16:03:46 +0100
Subject: [PATCH] Don't fail if slot already marked successful

---
 bootctrl_impl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bootctrl_impl.cpp b/bootctrl_impl.cpp
index bfbcda5..705efd9 100644
--- a/bootctrl_impl.cpp
+++ b/bootctrl_impl.cpp
@@ -376,7 +376,7 @@ int mark_boot_successful(unsigned slot)
 	if (successful) {
 		fprintf(stderr, "SLOT %s: already marked successful\n",
 			slot_suffix_arr[slot]);
-		return -1;
+		return 0;
 	}
 
 	if (update_slot_attribute(slot_suffix_arr[slot],