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authorShenglei Zhang <shenglei.zhang@intel.com>2019-10-15 10:30:27 +0800
committerLiming Gao <liming.gao@intel.com>2019-11-06 13:26:27 +0800
commita7d69b6aafaae452e4b54d70c113de10c45dd54b (patch)
tree81f6029397aff5595eff0584d314d5f5ba04d840 /MdeModulePkg/Universal
parent0c1541d457832d3f68158cf61d21c30fe32bb885 (diff)
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MdeModulePkg/EbcDebugger: Add check for Entry and RetEntry
Entry and RetEntry might be NULL before used. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Diffstat (limited to 'MdeModulePkg/Universal')
-rw-r--r--MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdSymbol.c2
-rw-r--r--MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbSymbol.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdSymbol.c b/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdSymbol.c
index 8e305e4..7b453fa 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdSymbol.c
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdSymbol.c
@@ -143,7 +143,7 @@ DebuggerDisplaySymbolAccrodingToAddress (
// Find the nearest symbol address
//
CandidateAddress = EbdFindSymbolAddress (Address, EdbMatchSymbolTypeNearestAddress, &Object, &Entry);
- if (CandidateAddress == 0 || CandidateAddress == (UINTN) -1) {
+ if (CandidateAddress == 0 || CandidateAddress == (UINTN) -1 || Entry == NULL) {
EDBPrint (L"Symbole at Address not found!\n");
return EFI_DEBUG_CONTINUE;
} else if (Address != CandidateAddress) {
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbSymbol.c b/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbSymbol.c
index 85cc275..90a9b9f 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbSymbol.c
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbSymbol.c
@@ -2062,7 +2062,7 @@ EdbPrintSource (
&RetObject,
&RetEntry
);
- if (SymbolAddress == 0) {
+ if (SymbolAddress == 0 || RetEntry == NULL) {
return 0 ;
}