diff options
| -rw-r--r-- | MdeModulePkg/Universal/PCD/Dxe/Service.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/MdeModulePkg/Universal/PCD/Dxe/Service.c b/MdeModulePkg/Universal/PCD/Dxe/Service.c index 8ec3452386..532bb39cc4 100644 --- a/MdeModulePkg/Universal/PCD/Dxe/Service.c +++ b/MdeModulePkg/Universal/PCD/Dxe/Service.c @@ -975,8 +975,10 @@ SetHiiVariable ( VOID *Buffer;
EFI_STATUS Status;
UINT32 Attribute;
+ UINTN SetSize;
Size = 0;
+ SetSize = 0;
//
// Try to get original variable size information.
@@ -988,14 +990,17 @@ SetHiiVariable ( &Size,
NULL
);
-
+
if (Status == EFI_BUFFER_TOO_SMALL) {
//
// Patch new PCD's value to offset in given HII variable.
//
-
- Buffer = AllocatePool (Size);
-
+ if (Size >= (DataSize + Offset)) {
+ SetSize = Size;
+ } else {
+ SetSize = DataSize + Offset;
+ }
+ Buffer = AllocatePool (SetSize);
ASSERT (Buffer != NULL);
Status = gRT->GetVariable (
@@ -1014,13 +1019,12 @@ SetHiiVariable ( VariableName,
VariableGuid,
Attribute,
- Size,
+ SetSize,
Buffer
);
FreePool (Buffer);
return Status;
-
} else if (Status == EFI_NOT_FOUND) {
//
// If variable does not exist, a new variable need to be created.
|