What it returns of parameter of DataSize in EFI_RUNTIME_SERVICES.GetVariable() if EFI_BUFFER_TOO_SMALL is returned?
DataSize is set to the required buffer size to obtain the data
Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: What it returns of parameter of DataSize in EFI_RUNTIME_SERVICES.GetVariable() if EFI_BUFFER_TOO_SMALL is returned? ### Response: DataSize is set to the required buffer size to obtain the data 