MdeModulePkg/Mem: Initialize the variable MapMemory

MapMemory is not initialized by FindGuardedMemoryMap or CoreInternalAllocatePages which calls MapMemory. So we give a 0 to it. Cc: Dandan Bi <[email protected]> Cc: Liming Gao <[email protected]> Signed-off-by: Shenglei Zhang <[email protected]> Reviewed-by: Dandan Bi <[email protected]>
WalonLi · Nov 4, 2019 · 17efd44 · 17efd44
1 parent a857ea4
commit 17efd44
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c b/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
@@ -225,6 +225,8 @@ FindGuardedMemoryMap (
   UINTN                   BitsToUnitEnd;
   EFI_STATUS              Status;
 
+  MapMemory = 0;
+
   //
   // Adjust current map table depth according to the address to access
   //