From 9ce51354899d345032dbd1f24398755bb1137063 Mon Sep 17 00:00:00 2001
From: Michael Sauer <michael.sauer@qconnex.com>
Date: Fri, 11 Sep 2026 20:53:34 +0200
Subject: [PATCH] =?UTF-8?q?fix:=20R=C3=BCckgabewert=20von=20tls=5Fos=5Fmut?=
 =?UTF-8?q?ex=5Fcreate=20in=20UserMain=20pr=C3=BCfen?=
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Schlägt die Mutex-Erstellung für s_lock fehl, wird jetzt "FATAL: cannot create app lock" ausgegeben und UserMain kehrt zurück, statt mit einem NULL-Mutex weiterzumachen und den App-Task zu starten.
---
 src/app_main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/app_main.c b/src/app_main.c
index 874a246..91ad5d4 100644
--- a/src/app_main.c
+++ b/src/app_main.c
@@ -162,6 +162,9 @@ void UserMain(void)
         printf("FATAL: unknown board %s\r\n", NINLIGHT_DEVICE_ID);
         return;
     }
-    tls_os_mutex_create(0, &s_lock);
+    if (tls_os_mutex_create(0, &s_lock) != TLS_OS_SUCCESS) {
+        printf("FATAL: cannot create app lock\r\n");
+        return;
+    }
     tls_os_task_create(NULL, "nl_app", app_task, NULL, (u8 *)s_app_stack, sizeof(s_app_stack), NL_APP_PRIO, 0);
 }