From b9a76ea094c84d16e7548d95fcb9fdd7f99f6e18 Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Tue, 9 Jan 2024 18:59:28 +0100
Subject: [PATCH] core/init: avoid context switch with !core_thread

---
 core/lib/init.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/lib/init.c b/core/lib/init.c
index cdf7358a4e..0dbbc6971c 100644
--- a/core/lib/init.c
+++ b/core/lib/init.c
@@ -106,8 +106,11 @@ void kernel_init(void)
                       main_trampoline, NULL, "main");
     }
     else {
+        /* RIOT without threads */
         irq_enable();
         main_trampoline(NULL);
+        while (1) {}
+        return;
     }
 
     cpu_switch_context_exit();