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SecurityPkg OpalPasswordDxe: Check the pointer before use it.

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Check the pointer before use it to make the code more safely.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
This commit is contained in:
Eric Dong 2016-04-06 12:52:44 +08:00 committed by Ruiyu Ni
parent 3626c583e5
commit b4ddf0eb49
1 changed files with 11 additions and 10 deletions
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21
SecurityPkg/Tcg/Opal/OpalPasswordDxe/OpalHii.c
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@ -435,12 +435,12 @@ GetDiskNameStringId(
EFI_STATUS
EFIAPI
DriverCallback(
CONST EFI_HII_CONFIG_ACCESS_PROTOCOL* This,
CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
EFI_BROWSER_ACTION Action,
EFI_QUESTION_ID QuestionId,
UINT8 Type,
EFI_IFR_TYPE_VALUE* Value,
EFI_BROWSER_ACTION_REQUEST* ActionRequest
EFI_IFR_TYPE_VALUE *Value,
EFI_BROWSER_ACTION_REQUEST *ActionRequest
)
{
HII_KEY HiiKey;
@ -448,6 +448,8 @@ DriverCallback(
if (ActionRequest != NULL) {
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
} else {
return EFI_INVALID_PARAMETER;
}
//
@ -644,14 +646,13 @@ HiiPsidRevert(
UnicodeStrToAsciiStr(gHiiConfiguration.Psid, (CHAR8*)Psid.Psid);
OpalDisk = HiiGetOpalDiskCB(gHiiConfiguration.SelectedDiskIndex);
ZeroMem(&Session, sizeof(Session));
Session.Sscp = OpalDisk->Sscp;
Session.MediaId = OpalDisk->MediaId;
Session.OpalBaseComId = OpalDisk->OpalBaseComId;
OpalDisk = HiiGetOpalDiskCB (gHiiConfiguration.SelectedDiskIndex);
if (OpalDisk != NULL) {
ZeroMem(&Session, sizeof(Session));
Session.Sscp = OpalDisk->Sscp;
Session.MediaId = OpalDisk->MediaId;
Session.OpalBaseComId = OpalDisk->OpalBaseComId;
Ret = OpalSupportPsidRevert(&Session, Psid.Psid, (UINT32)sizeof(Psid.Psid), OpalDisk->OpalDevicePath);
}