From f1894fa294a17c17149c55ae21d4d85b2df3c1de Mon Sep 17 00:00:00 2001
From: Ruiyu Ni <ruiyu.ni@intel.com>
Date: Thu, 20 Apr 2017 10:17:16 +0800
Subject: [PATCH] ShellPkg/pci: Fix VS2012 build failure

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
---
 ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c b/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
index 99335f05c5..38559571c2 100644
--- a/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
+++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
@@ -2885,6 +2885,7 @@ ShellCommandRunPci (
      );
 
     ExtendedConfigSpace = NULL;
+    ExtendedConfigSize  = 0;
     PcieCapabilityPtr = LocatePciCapability (&ConfigSpace, EFI_PCI_CAPABILITY_ID_PCIEXP);
     if (PcieCapabilityPtr != 0) {
       ExtendedConfigSize  = 0x1000 - EFI_PCIE_CAPABILITY_BASE_OFFSET;
@@ -2922,7 +2923,7 @@ ShellCommandRunPci (
     //
     if (ExplainData) {
       PciExplainPci (&ConfigSpace, Address, IoDev);
-      if ((PcieCapabilityPtr != 0) && !ShellGetExecutionBreakFlag ()) {
+      if ((ExtendedConfigSpace != NULL) && !ShellGetExecutionBreakFlag ()) {
         PciExplainPciExpress (
           (PCI_CAPABILITY_PCIEXP *) ((UINT8 *) &ConfigSpace + PcieCapabilityPtr),
           ExtendedConfigSpace,
-- 
2.39.2