在第166行中,“rt_size_t length”应改为“rt_uint32_t length”。
在第200行中,“rt_size_t length”应改为“rt_uint32_t length”。

In line 166, "rt_size_t length" should be changed to "rt_uint32_t length".
In line 200, "rt_size_t length" should be changed to "rt_uint32_t length".
Signed-off-by: NZhou Yanjie <zhou_yan_jie@163.com>