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Apply library to test controller handle.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4323 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8 2007-11-23 06:10:27 +00:00
parent 87f8ccbe19
commit 54857d5a7c
1 changed files with 6 additions and 37 deletions
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43
OptionRomPkg/CirrusLogic5430Dxe/ComponentName.c
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@ -175,9 +175,7 @@ CirrusLogic5430ComponentNameGetControllerName (
OUT CHAR16 **ControllerName OUT CHAR16 **ControllerName
) )
{ {
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
EFI_STATUS Status; EFI_STATUS Status;
EFI_PCI_IO_PROTOCOL *PciIoProtocol;
// //
// This is a device driver, so ChildHandle must be NULL. // This is a device driver, so ChildHandle must be NULL.
@ -187,42 +185,13 @@ CirrusLogic5430ComponentNameGetControllerName (
} }
// //
// Check Controller's handle // Make sure this driver is currently managing ControllHandle
// //
Status = gBS->OpenProtocol ( Status = EfiTestManagedDevice (
ControllerHandle, ControllerHandle,
&gEfiPciIoProtocolGuid, gCirrusLogic5430DriverBinding.DriverBindingHandle,
(VOID **) &PciIoProtocol, &gEfiPciIoProtocolGuid
gCirrusLogic5430DriverBinding.DriverBindingHandle, );
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (!EFI_ERROR (Status)) {
gBS->CloseProtocol (
ControllerHandle,
&gEfiPciIoProtocolGuid,
gCirrusLogic5430DriverBinding.DriverBindingHandle,
ControllerHandle
);
return EFI_UNSUPPORTED;
}
if (Status != EFI_ALREADY_STARTED) {
return EFI_UNSUPPORTED;
}
//
// Get the UGA Draw Protocol on Controller
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiUgaDrawProtocolGuid,
(VOID **) &UgaDraw,
gCirrusLogic5430DriverBinding.DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
return Status; return Status;
} }