mirror of https://github.com/acidanthera/audk.git
MdeModulePkg/SerialDxe: Fix return valued in SerialSetAttributes
SerialSetAttributes is meant to match the behavior of the function EFI_SERIAL_IO_PROTOCOL.SetAttributes() in the UEFI spec (v2.7). This means the function can only return: - EFI_SUCCESS - EFI_INVALID_PARAMETER - EFI_DEVICE_ERROR However the function SerialPortSetAttributes may also validly return EFI_UNSUPPORTED. For instance this is the case of the Xen Console driver. EFI_UNSUPPORTED could be also interpreted as "One or more of the attributes has an unsupported value". So return EFI_INVALID_PARAMETER in that case. Lastly, to prevent another return slipping in the future, all the errors but EFI_INVALID_PARAMETER and EFI_UNSUPPORTED will return EFI_DEVICE_ERROR. Contributed-under: Tianocore Contribution Agreement 1.1 Signed-off-by: Julien Grall <julien.grall@linaro.org> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
parent
b462f25a21
commit
13d378fc82
|
@ -66,8 +66,9 @@ SerialReset (
|
|||
value of DefaultStopBits will use the device's default number of
|
||||
stop bits.
|
||||
|
||||
@retval EFI_SUCCESS The device was reset.
|
||||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
@retval EFI_SUCCESS The device was reset.
|
||||
@retval EFI_INVALID_PARAMETER One or more attributes has an unsupported value.
|
||||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
|
@ -264,8 +265,9 @@ SerialReset (
|
|||
value of DefaultStopBits will use the device's default number of
|
||||
stop bits.
|
||||
|
||||
@retval EFI_SUCCESS The device was reset.
|
||||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
@retval EFI_SUCCESS The device was reset.
|
||||
@retval EFI_INVALID_PARAMETER One or more attributes has an unsupported value.
|
||||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
|
@ -323,8 +325,10 @@ SerialSetAttributes (
|
|||
DataBits = OriginalDataBits;
|
||||
StopBits = OriginalStopBits;
|
||||
Status = EFI_SUCCESS;
|
||||
} else if (Status == EFI_INVALID_PARAMETER || Status == EFI_UNSUPPORTED) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
} else {
|
||||
return Status;
|
||||
return EFI_DEVICE_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -125,8 +125,9 @@ EFI_STATUS
|
|||
value of DefaultStopBits will use the device's default number of
|
||||
stop bits.
|
||||
|
||||
@retval EFI_SUCCESS The device was reset.
|
||||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
@retval EFI_SUCCESS The device was reset.
|
||||
@retval EFI_INVALID_PARAMETER One or more attributes has an unsupported value.
|
||||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
|
||||
**/
|
||||
typedef
|
||||
|
|
Loading…
Reference in New Issue