51     rt_err_t ret = rt_thread_startup(thread->thread);  in lv_thread_init()  local
52     if(ret) {  in lv_thread_init()
53         LV_LOG_WARN("Error: %d", ret);  in lv_thread_init()
63     rt_err_t ret = rt_thread_delete(thread->thread);  in lv_thread_delete()  local
64     if(ret) {  in lv_thread_delete()
65         LV_LOG_WARN("Error: %d", ret);  in lv_thread_delete()
87     rt_err_t ret = rt_mutex_take(mutex->mutex, RT_WAITING_FOREVER);  in lv_mutex_lock()  local
88     if(ret) {  in lv_mutex_lock()
89         LV_LOG_WARN("Error: %d", ret);  in lv_mutex_lock()
99     rt_err_t ret = rt_mutex_take(mutex->mutex, RT_WAITING_FOREVER);  in lv_mutex_lock_isr()  local
100     if(ret) {  in lv_mutex_lock_isr()
101         LV_LOG_WARN("Error: %d", ret);  in lv_mutex_lock_isr()
111     rt_err_t ret = rt_mutex_release(mutex->mutex);  in lv_mutex_unlock()  local
112     if(ret) {  in lv_mutex_unlock()
113         LV_LOG_WARN("Error: %d", ret);  in lv_mutex_unlock()
123     rt_err_t ret = rt_mutex_delete(mutex->mutex);  in lv_mutex_delete()  local
124     if(ret) {  in lv_mutex_delete()
125         LV_LOG_WARN("Error: %d", ret);  in lv_mutex_delete()
147     rt_err_t ret = rt_sem_take(sync->sem, RT_WAITING_FOREVER);  in lv_thread_sync_wait()  local
148     if(ret) {  in lv_thread_sync_wait()
149         LV_LOG_WARN("Error: %d", ret);  in lv_thread_sync_wait()
159     rt_err_t ret = rt_sem_release(sync->sem);  in lv_thread_sync_signal()  local
160     if(ret) {  in lv_thread_sync_signal()
161         LV_LOG_WARN("Error: %d", ret);  in lv_thread_sync_signal()
171     rt_err_t ret = rt_sem_delete(sync->sem);  in lv_thread_sync_delete()  local
172     if(ret) {  in lv_thread_sync_delete()
173         LV_LOG_WARN("Error: %d", ret);  in lv_thread_sync_delete()