MdeModulePkg/EhciPei: Initialize the variable Map

Map is used but not Initialized.
Map is called by IoMmuMap, in which Mapping(Map) is called by IoMmu->Map.
We can not assume Map is given an initial value at any step.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>

diff --git a/MdeModulePkg/Bus/Pci/EhciPei/EhciUrb.c b/MdeModulePkg/Bus/Pci/EhciPei/EhciUrb.c
index 7c6a6a5f9716a4d31dfb9d5cef567b361a6e0f41..995ccd2463d2b42836b15871062ee73ea1c4b32d 100644 (file)
--- a/MdeModulePkg/Bus/Pci/EhciPei/EhciUrb.c
+++ b/MdeModulePkg/Bus/Pci/EhciPei/EhciUrb.c
@@ -534,6 +534,8 @@ EhcCreateUrb (
   PEI_URB                       *Urb;\r
   VOID                          *Map;\r
 \r
+  Map = NULL;\r
+\r
   Urb = Ehc->Urb;\r
   Urb->Signature  = EHC_URB_SIG;\r
   InitializeListHead (&Urb->UrbList);\r