From a00df2e5626f6aafafb9bdfd3e189402b1329530 Mon Sep 17 00:00:00 2001
From: Hao Wu <hao.a.wu@intel.com>
Date: Thu, 7 Jul 2016 14:53:58 +0800
Subject: [PATCH] MdeModulePkg SdBlockIoPei: Initialize 'SwitchResp' elements
 before using

The commit makes sure that the elements in array 'SwitchResp' get
initialized before being used.

Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
---
 MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c b/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c
index c251fbecb3..72efd56d48 100644
--- a/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c
+++ b/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c
@@ -2647,6 +2647,7 @@ SdPeimSetBusMode (
   //
   // Get the supported bus speed from SWITCH cmd return data group #1.
   //
+  ZeroMem (SwitchResp, sizeof (SwitchResp));
   Status = SdPeimSwitch (Slot, 0xF, 0xF, 0xF, 0xF, FALSE, SwitchResp);
   if (EFI_ERROR (Status)) {
     return Status;