In the case that the copy sz is 0, it is unnecessary to do copy.
Signed-off-by: Zheng, Gen <gen.zheng@intel.com>
Reviewed-by: Chen, Jason Cl <jason.cj.chen@intel.com>
Reviewed-by: Yakui, Zhao <yakui.zhao@intel.com>
Replace ASSERT in lib functions with error message print and return a
value indicating error to allow the caller of lib functions to handle
the error.
Change-Id: If166484238dc0734041adfdbb19a5b374c044e33
Signed-off-by: Yan, Like <like.yan@intel.com>
