NetworkPkg: Stop and release DHCP4 child after boot info is ready

HttpBootDxe need to stop and release the DHCP4 child when it's
not used so the NBP could create new DHCP4 child and use it.

Cc: Ye Ting <ting.ye@intel.com>
Cc: Zhang Lubo <lubo.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18231 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/NetworkPkg/HttpBootDxe/HttpBootImpl.c b/NetworkPkg/HttpBootDxe/HttpBootImpl.c
index 711cc3c8c5f94236d06b2b59f62fc22c6c7d8de5..920761e3319760cc0e781c037c85066601895322 100644 (file)
--- a/NetworkPkg/HttpBootDxe/HttpBootImpl.c
+++ b/NetworkPkg/HttpBootDxe/HttpBootImpl.c
@@ -244,6 +244,12 @@ HttpBootStop (
   Private->SelectProxyType = HttpOfferTypeMax;
 
   if (!Private->UsingIpv6) {
+    //
+    // Stop and release the DHCP4 child.
+    //
+    Private->Dhcp4->Stop (Private->Dhcp4);
+    Private->Dhcp4->Configure (Private->Dhcp4, NULL);
+
     for (Index = 0; Index < HTTP_BOOT_OFFER_MAX_NUM; Index++) {
       if (Private->OfferBuffer[Index].Dhcp4.UriParser) {
         HttpUrlFreeParser (Private->OfferBuffer[Index].Dhcp4.UriParser);
@@ -338,6 +344,12 @@ HttpBootDxeLoadFile (
 
   if (Status != EFI_SUCCESS && Status != EFI_BUFFER_TOO_SMALL) {
     HttpBootStop (Private);
+  } else {
+    //
+    // Stop and release the DHCP4 child.
+    //
+    Private->Dhcp4->Stop (Private->Dhcp4);
+    Private->Dhcp4->Configure (Private->Dhcp4, NULL);
   }
 
   return Status;