src/common/thread.c: function xbt_mutex_acquire does not have a return value

src/common/thread.c

@@ -120,7 +120,8 @@ int starpu_pthread_mutex_trylock(starpu_pthread_mutex_t *mutex)
 	file += sizeof(char);
 	_STARPU_TRACE_TRYLOCK_MUTEX(file,__LINE__);
 
-	return xbt_mutex_acquire(*mutex);
+	xbt_mutex_acquire(*mutex);
+	return 0;
 }
 
 static int used_key[MAX_TSD];