[PATCH v3 1/3] MdeModulePkg/SerialDxe: Describe correctly EFI_DEVICE_ERROR for SetAttributes

[Julien Grall <julien.grall@linaro.org>]

Per the UEFIv2.7 spec, EFI_DEVICE_ERROR is returned when the serial
device is not functioning correctly. Update the description to avoid
confusion.

Contributed-under: Tianocore Contribution Agreement 1.1
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Reviewed-by: Star Zeng <star.zeng@intel.com>

---
    Star, I found a prototype for SetAttributes in SerialIo.c as well
    and updated the description there. I decided to keep the Reviewed-by
    even with that change. Let me know whether it is fine for you.

    Changes in v3:
        - Modify description of EFI_DEVICE_ERROR above the prototypes
        for SetAttributes as well.
        - Add Star reviewed-by
---
 MdeModulePkg/Universal/SerialDxe/SerialIo.c | 4 ++--
 MdePkg/Include/Protocol/SerialIo.h          | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/MdeModulePkg/Universal/SerialDxe/SerialIo.c b/MdeModulePkg/Universal/SerialDxe/SerialIo.c
index 964d0329f4..19fc889c25 100644
--- a/MdeModulePkg/Universal/SerialDxe/SerialIo.c
+++ b/MdeModulePkg/Universal/SerialDxe/SerialIo.c
@@ -67,7 +67,7 @@ SerialReset (
                            stop bits.
 
   @retval EFI_SUCCESS      The device was reset.
-  @retval EFI_DEVICE_ERROR The serial device could not be reset.
+  @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
 
 **/
 EFI_STATUS
@@ -265,7 +265,7 @@ SerialReset (
                            stop bits.
 
   @retval EFI_SUCCESS      The device was reset.
-  @retval EFI_DEVICE_ERROR The serial device could not be reset.
+  @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
 
 **/
 EFI_STATUS
diff --git a/MdePkg/Include/Protocol/SerialIo.h b/MdePkg/Include/Protocol/SerialIo.h
index 31cd46614e..84cb34364d 100644
--- a/MdePkg/Include/Protocol/SerialIo.h
+++ b/MdePkg/Include/Protocol/SerialIo.h
@@ -126,7 +126,7 @@ EFI_STATUS
                            stop bits.
 
   @retval EFI_SUCCESS      The device was reset.
-  @retval EFI_DEVICE_ERROR The serial device could not be reset.
+  @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
 
 **/
 typedef
-- 
2.11.0