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Enhance HiiGetBrowserData API to support the case that storage element is 0. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8135 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2009-04-20 08:12:38 +00:00
parent 2fd618df9d
commit 6412128af3
2 changed files with 11 additions and 2 deletions
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4
IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c
View File

@ -273,7 +273,7 @@ BootMaintCallback (
//
CurrentFakeNVMap = (BMM_FAKE_NV_DATA *) HiiGetBrowserData (&mBootMaintGuid, mBootMaintStorageName, sizeof (BMM_FAKE_NV_DATA));
if (CurrentFakeNVMap == NULL) {
CurrentFakeNVMap = &Private->BmmFakeNvData;
return EFI_NOT_FOUND;
}
//
@ -590,7 +590,7 @@ BootMaintCallback (
//
// Update local settting.
//
if ((UINTN) CurrentFakeNVMap != (UINTN) &Private->BmmFakeNvData) {
if (CurrentFakeNVMap != NULL) {
CopyMem (&Private->BmmFakeNvData, CurrentFakeNVMap, sizeof (BMM_FAKE_NV_DATA));
FreePool (CurrentFakeNVMap);
}

9
MdeModulePkg/Library/UefiHiiLib/HiiLib.c
View File

@ -564,6 +564,15 @@ InternalHiiBrowserCallback (
VariableGuid,
VariableName
);
if (!EFI_ERROR (Status)) {
//
// No Resluts Data, only allocate one char for '\0'
//
ResultsData = AllocateZeroPool (sizeof (CHAR16));
return ResultsData;
}
if (Status != EFI_BUFFER_TOO_SMALL) {
return NULL;
}