fixed one bug to catch the return status.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5582 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c
index 3c2b4e101952a3388fa1796a90a10f1857b25acd..a0ec216e072c635ac16fc7662826d78388cccac7 100644 (file)
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c
@@ -747,6 +747,11 @@ Mtftp4Start (
     goto ON_ERROR;\r
   }\r
 \r
+  //\r
+  // Set initial status.\r
+  //\r
+  Token->Status = EFI_NOT_READY;\r
+\r
   //\r
   // Build and send an initial requests\r
   //\r
@@ -761,16 +766,15 @@ Mtftp4Start (
   if (EFI_ERROR (Status)) {\r
     goto ON_ERROR;\r
   }\r
-  //\r
-  // Return immediately for asynchronous operation or poll the\r
-  // instance for synchronous operation.\r
-  //\r
-  Token->Status = EFI_NOT_READY;\r
 \r
   if (Token->Event != NULL) {\r
     return EFI_SUCCESS;\r
   }\r
 \r
+  //\r
+  // Return immediately for asynchronous operation or poll the\r
+  // instance for synchronous operation.\r
+  //\r
   while (Token->Status == EFI_NOT_READY) {\r
     This->Poll (This);\r
   }\r