X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FUniversal%2FNetwork%2FTcp4Dxe%2FTcp4Driver.c;h=1eefb38f915309e29b5ca723f56a0be26e9c425b;hp=3ae8a2091cb9f4cff48941d411856002719f59fc;hb=e5e12de7d0a67111060c77723df39885c91a8ea5;hpb=98376cc51df0c0bd92a3436ec3309401d98c84e3;ds=inline

diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Driver.c b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Driver.c
index 3ae8a2091c..1eefb38f91 100644
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Driver.c
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Driver.c
@@ -586,6 +586,28 @@ Tcp4ServiceBindingCreateChild (
                   );
   if (EFI_ERROR (Status)) {
     SockDestroyChild (Sock);
+    goto ON_EXIT;
+  }
+
+  //
+  // Open the device path on the handle where service binding resides on.
+  //
+  Status = gBS->OpenProtocol (
+                  TcpServiceData->ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **) &Sock->ParentDevicePath,
+                  TcpServiceData->DriverBindingHandle,
+                  Sock->SockHandle,
+                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                  );
+  if (EFI_ERROR (Status)) {
+    gBS->CloseProtocol (
+           TcpServiceData->IpIo->ChildHandle,
+           &gEfiIp4ProtocolGuid,
+           TcpServiceData->DriverBindingHandle,
+           Sock->SockHandle
+           );
+    SockDestroyChild (Sock);
   }
 
 ON_EXIT:
@@ -652,6 +674,16 @@ Tcp4ServiceBindingDestroyChild (
 
   Status = SockDestroyChild (Sock);
 
+  //
+  // Close the device path protocol
+  //
+  gBS->CloseProtocol (
+         TcpServiceData->ControllerHandle,
+         &gEfiDevicePathProtocolGuid,
+         TcpServiceData->DriverBindingHandle,
+         ChildHandle
+         );
+
   //
   // Close the Ip4 protocol.
   //