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Add more check to make sure code run safely.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10574 6f19259b-4bc3-4df7-8a09-765794883524
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lgao4
2010-06-11 07:47:06 +00:00
parent 61ece967cb
commit 4ac4deb706
25 changed files with 275 additions and 102 deletions
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6
EdkCompatibilityPkg/Foundation/Library/Dxe/Graphics/Graphics.c
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@@ -1,6 +1,6 @@
/*++
Copyright (c) 2004 - 2009, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -436,11 +436,13 @@ Returns:
if (GraphicsOutput != NULL) {
SizeOfX = GraphicsOutput->Mode->Info->HorizontalResolution;
SizeOfY = GraphicsOutput->Mode->Info->VerticalResolution;
} else {
} else if (UgaDraw != NULL) {
Status = UgaDraw->GetMode (UgaDraw, &SizeOfX, &SizeOfY, &ColorDepth, &RefreshRate);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
} else {
return EFI_UNSUPPORTED;
}
Instance = 0;