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1) Add in "check-for-null" before dereferencing a pointer.
2) unify the handling of EFI_OUT_OF_RESOURCE case.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7310 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qwang12
2009-01-20 02:00:46 +00:00
parent d0720b5706
commit fa7b3168fd
4 changed files with 116 additions and 71 deletions
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22
MdeModulePkg/Library/ExtendedIfrSupportLib/Form.c
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@@ -376,15 +376,21 @@ IfrLibUpdateForm (
BufferSize = 0;
HiiPackageList = NULL;
Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
if (Status == EFI_BUFFER_TOO_SMALL) {
HiiPackageList = AllocatePool (BufferSize);
ASSERT (HiiPackageList != NULL);
//
// Handle is a invalid handle. Check if Handle is corrupted.
//
ASSERT (Status != EFI_NOT_FOUND);
//
// The return status should always be EFI_BUFFER_TOO_SMALL as input buffer's size is 0.
//
ASSERT (Status == EFI_BUFFER_TOO_SMALL);
HiiPackageList = AllocatePool (BufferSize);
ASSERT (HiiPackageList != NULL);
Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
if (EFI_ERROR (Status)) {
FreePool (HiiPackageList);
return Status;
}
Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
if (EFI_ERROR (Status)) {
FreePool (HiiPackageList);
return Status;
}
//