Http boot on X64 platform is faild, this is caused by the incorrect
type conversion when getting port number from Url.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zh...@intel.com>
Cc: Ye Ting <ting...@intel.com>
Cc: Fu Siyuan <siyuan...@intel.com>
Cc: Wu Jiaxin <jiaxin...@intel.com>
---
 MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c 
b/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
index ccc20cc..2ff04ff 100644
--- a/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
+++ b/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
@@ -690,10 +690,11 @@ HttpUrlGetPort (
      OUT  UINT16             *Port
   )
 {
   CHAR8         *PortString;
   EFI_STATUS    Status;
+  UINTN         Data;
   UINT32        ResultLength;
   HTTP_URL_PARSER      *Parser;
 
   if (Url == NULL || UrlParser == NULL || Port == NULL) {
     return EFI_INVALID_PARAMETER;
@@ -720,11 +721,14 @@ HttpUrlGetPort (
     return Status;
   }
 
   PortString[ResultLength] = '\0';
 
-  return AsciiStrDecimalToUintnS (Url + 
Parser->FieldData[HTTP_URI_FIELD_PORT].Offset, (CHAR8 **) NULL, (UINTN *) Port);
+  Status =  AsciiStrDecimalToUintnS (Url + 
Parser->FieldData[HTTP_URI_FIELD_PORT].Offset, (CHAR8 **) NULL, &Data);
+
+  *Port = (UINT16) Data;
+  return Status;
 }
 
 /**
   Get the Path from a HTTP URL.
 
-- 
1.9.5.msysgit.1

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