File ovmf.CoreOpenProtocol.patch of Package xen

From: Olaf Hering <olaf@aepfle.de>
Date: Tue, 20 Jun 2023 19:29:35 +0000
Subject: CoreOpenProtocol
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/home/abuild/rpmbuild/BUILD/xen-4.18.20230619T122059.42473bae/non-dbg/tools/firmware/ovmf-dir-remote/MdeModulePkg/Core/Dxe/Hand/Handle.c: In function ‘CoreOpenProtocol’:
/home/abuild/rpmbuild/BUILD/xen-4.18.20230619T122059.42473bae/non-dbg/tools/firmware/ovmf-dir-remote/MdeModulePkg/Core/Dxe/Hand/Handle.c:1183:24: error: ‘Prot’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
       *Interface = Prot->Interface;
                    ~~~~^~~~~~~~~~~

Signed-off-by: Olaf Hering <olaf@aepfle.de>
---
 MdeModulePkg/Core/Dxe/Hand/Handle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/MdeModulePkg/Core/Dxe/Hand/Handle.c
+++ b/MdeModulePkg/Core/Dxe/Hand/Handle.c
@@ -957,25 +957,25 @@ CoreHandleProtocol (
 EFI_STATUS
 EFIAPI
 CoreOpenProtocol (
   IN  EFI_HANDLE  UserHandle,
   IN  EFI_GUID    *Protocol,
   OUT VOID        **Interface OPTIONAL,
   IN  EFI_HANDLE  ImageHandle,
   IN  EFI_HANDLE  ControllerHandle,
   IN  UINT32      Attributes
   )
 {
   EFI_STATUS          Status;
-  PROTOCOL_INTERFACE  *Prot;
+  PROTOCOL_INTERFACE  *Prot = NULL;
   LIST_ENTRY          *Link;
   OPEN_PROTOCOL_DATA  *OpenData;
   BOOLEAN             ByDriver;
   BOOLEAN             Exclusive;
   BOOLEAN             Disconnect;
   BOOLEAN             ExactMatch;
 
   //
   // Check for invalid Protocol
   //
   if (Protocol == NULL) {
     return EFI_INVALID_PARAMETER;