From c6e3c3e68a240e7d503b7e4fee9ea6002e33f6a0 Mon Sep 17 00:00:00 2001
From: "xypron.glpk@gmx.de" <xypron.glpk@gmx.de>
Date: Fri, 21 Jul 2017 19:05:44 +0200
Subject: efi_memory: return MapKey

efi_get_memory_map should set a defined value for map_key.

We later can introduce the test against this value in
efi_exit_boot_services as required by the UEFI standard.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index c56653f..f59e3ea 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -431,6 +431,8 @@ efi_status_t efi_get_memory_map(unsigned long *memory_map_size,
 		}
 	}
 
+	*map_key = 0;
+
 	return EFI_SUCCESS;
 }
 
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