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MdeModulePkg: Refine the code in UiApp 

Refine the code in UiApp to prevent the potential risk.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>

Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18216 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Dandan Bi 2015-08-13 00:58:56 +00:00 committed by dandanbi
parent fa6c39dbfb
commit ed5d1532f9
2 changed files with 10 additions and 3 deletions
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1
MdeModulePkg/Application/UiApp/BootMaint/FileExplorer.c
View File

@ -258,7 +258,6 @@ FileExplorerCallback (
Status = EFI_SUCCESS;
Private = FE_CALLBACK_DATA_FROM_THIS (This);
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
//
// Retrieve uncommitted data from Form Browser

12
MdeModulePkg/Application/UiApp/BootMaint/Variable.c
View File

@ -524,6 +524,7 @@ Var_UpdateErrorOutOption (
@retval EFI_OUT_OF_RESOURCES If not enought memory to complete the operation.
@retval EFI_SUCCESS If function completes successfully.
@return Others Errors Return errors from call to gRT->GetVariable.
**/
EFI_STATUS
@ -659,7 +660,10 @@ Var_UpdateDriverOption (
Buffer
);
ASSERT_EFI_ERROR (Status);
GetEfiGlobalVariable2 (L"DriverOrder", (VOID **) &DriverOrderList, &DriverOrderListSize);
Status = GetEfiGlobalVariable2 (L"DriverOrder", (VOID **) &DriverOrderList, &DriverOrderListSize);
if (EFI_ERROR (Status) || DriverOrderList == NULL){
return Status;
}
NewDriverOrderList = AllocateZeroPool (DriverOrderListSize + sizeof (UINT16));
ASSERT (NewDriverOrderList != NULL);
CopyMem (NewDriverOrderList, DriverOrderList, DriverOrderListSize);
@ -700,6 +704,7 @@ Var_UpdateDriverOption (
@retval EFI_OUT_OF_RESOURCES If not enought memory to complete the operation.
@retval EFI_SUCCESS If function completes successfully.
@return Others Errors Return errors from call to gRT->GetVariable.
**/
EFI_STATUS
@ -824,7 +829,10 @@ Var_UpdateBootOption (
);
ASSERT_EFI_ERROR (Status);
GetEfiGlobalVariable2 (L"BootOrder", (VOID **) &BootOrderList, &BootOrderListSize);
Status = GetEfiGlobalVariable2 (L"BootOrder", (VOID **) &BootOrderList, &BootOrderListSize);
if (EFI_ERROR (Status) || BootOrderList == NULL){
return Status;
}
NewBootOrderList = AllocateZeroPool (BootOrderListSize + sizeof (UINT16));
ASSERT (NewBootOrderList != NULL);
CopyMem (NewBootOrderList, BootOrderList, BootOrderListSize);