\r
@param SioPtr Pointer to SIO data.\r
\r
- @retval EFI_SUCCESS It should always work.\r
+ @retval EFI_SUCCESS When SIO data is got successfully.\r
+ @retval EFI_NOT_FOUND When ISA IO interface is absent.\r
\r
**/\r
EFI_STATUS\r
&HandleBuffer\r
);\r
if (EFI_ERROR (Status)) {\r
- return EFI_SUCCESS;\r
+ return EFI_NOT_FOUND;\r
}\r
//\r
// Collect legacy information from each of the ISA controllers in the system\r