posix: semaphore: check return value of k_mutex_lock()

This fixes CID 340851. This should never fail, but it's also something that can be easily verified. Signed-off-by: Christopher Friedt <[email protected]>
zephyrproject-rtos · Feb 6, 2024 · ba639ed · ba639ed
1 parent b320899
commit ba639ed
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/posix/options/semaphore.c b/lib/posix/options/semaphore.c
@@ -26,7 +26,9 @@ static K_MUTEX_DEFINE(nsem_mutex);
 
 static inline void nsem_list_lock(void)
 {
-	k_mutex_lock(&nsem_mutex, K_FOREVER);
+	__unused int ret = k_mutex_lock(&nsem_mutex, K_FOREVER);
+
+	__ASSERT(ret == 0, "nsem_list_lock() failed: %d", ret);
 }
 
 static inline void nsem_list_unlock(void)