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-rw-r--r--MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
index 71ea25bc19..2cad6d29f4 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
@@ -909,6 +909,7 @@ CompareAndMergeDefaultString (
// To find the <AltResp> with AltConfigHdr in AltCfgResp, ignore other <AltResp> which follow it.
//
StringPtr = StrStr (*AltCfgResp, AltConfigHdr);
+ ASSERT (StringPtr != NULL);
StringPtrNext = StrStr (StringPtr + 1, L"&GUID");
if (StringPtrNext != NULL) {
TempCharA = *StringPtrNext;