diff options
Diffstat (limited to 'MdeModulePkg/Bus')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpress.c | 125 |
1 files changed, 65 insertions, 60 deletions
diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpress.c b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpress.c index 4f187e3abb..ee40ba05c9 100644 --- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpress.c +++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpress.c @@ -928,97 +928,102 @@ NvmExpressUnload ( EFI_HANDLE *DeviceHandleBuffer;
UINTN DeviceHandleCount;
UINTN Index;
- EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;
EFI_COMPONENT_NAME_PROTOCOL *ComponentName;
EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;
//
- // Get the list of all the handles in the handle database.
- // If there is an error getting the list, then the unload
- // operation fails.
+ // Get the list of the device handles managed by this driver.
+ // If there is an error getting the list, then means the driver
+ // doesn't manage any device. At this way, we would only close
+ // those protocols installed at image handle.
//
+ DeviceHandleBuffer = NULL;
Status = gBS->LocateHandleBuffer (
- AllHandles,
- NULL,
+ ByProtocol,
+ &gEfiCallerIdGuid,
NULL,
&DeviceHandleCount,
&DeviceHandleBuffer
);
- if (EFI_ERROR (Status)) {
- return Status;
+ if (!EFI_ERROR (Status)) {
+ //
+ // Disconnect the driver specified by ImageHandle from all
+ // the devices in the handle database.
+ //
+ for (Index = 0; Index < DeviceHandleCount; Index++) {
+ Status = gBS->DisconnectController (
+ DeviceHandleBuffer[Index],
+ ImageHandle,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto EXIT;
+ }
+ }
}
//
- // Disconnect the driver specified by ImageHandle from all
- // the devices in the handle database.
+ // Uninstall all the protocols installed in the driver entry point
//
- for (Index = 0; Index < DeviceHandleCount; Index++) {
- Status = gBS->DisconnectController (
- DeviceHandleBuffer[Index],
- ImageHandle,
- NULL
- );
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ ImageHandle,
+ &gEfiDriverBindingProtocolGuid,
+ &gNvmExpressDriverBinding,
+ &gEfiDriverSupportedEfiVersionProtocolGuid,
+ &gNvmExpressDriverSupportedEfiVersion,
+ NULL
+ );
+
+ if (EFI_ERROR (Status)) {
+ goto EXIT;
}
//
- // Uninstall all the protocols installed in the driver entry point
+ // Note we have to one by one uninstall the following protocols.
+ // It's because some of them are optionally installed based on
+ // the following PCD settings.
+ // gEfiMdePkgTokenSpaceGuid.PcdDriverDiagnosticsDisable
+ // gEfiMdePkgTokenSpaceGuid.PcdComponentNameDisable
+ // gEfiMdePkgTokenSpaceGuid.PcdDriverDiagnostics2Disable
+ // gEfiMdePkgTokenSpaceGuid.PcdComponentName2Disable
//
- for (Index = 0; Index < DeviceHandleCount; Index++) {
- Status = gBS->HandleProtocol (
- DeviceHandleBuffer[Index],
- &gEfiDriverBindingProtocolGuid,
- (VOID **) &DriverBinding
- );
-
- if (EFI_ERROR (Status)) {
- continue;
- }
-
- if (DriverBinding->ImageHandle != ImageHandle) {
- continue;
- }
-
+ Status = gBS->HandleProtocol (
+ ImageHandle,
+ &gEfiComponentNameProtocolGuid,
+ (VOID **) &ComponentName
+ );
+ if (!EFI_ERROR (Status)) {
gBS->UninstallProtocolInterface (
ImageHandle,
- &gEfiDriverBindingProtocolGuid,
- DriverBinding
+ &gEfiComponentNameProtocolGuid,
+ ComponentName
);
+ }
- Status = gBS->HandleProtocol (
- DeviceHandleBuffer[Index],
- &gEfiComponentNameProtocolGuid,
- (VOID **) &ComponentName
- );
- if (!EFI_ERROR (Status)) {
- gBS->UninstallProtocolInterface (
- ImageHandle,
- &gEfiComponentNameProtocolGuid,
- ComponentName
- );
- }
-
- Status = gBS->HandleProtocol (
- DeviceHandleBuffer[Index],
- &gEfiComponentName2ProtocolGuid,
- (VOID **) &ComponentName2
- );
- if (!EFI_ERROR (Status)) {
- gBS->UninstallProtocolInterface (
- ImageHandle,
- &gEfiComponentName2ProtocolGuid,
- ComponentName2
- );
- }
+ Status = gBS->HandleProtocol (
+ ImageHandle,
+ &gEfiComponentName2ProtocolGuid,
+ (VOID **) &ComponentName2
+ );
+ if (!EFI_ERROR (Status)) {
+ gBS->UninstallProtocolInterface (
+ ImageHandle,
+ &gEfiComponentName2ProtocolGuid,
+ ComponentName2
+ );
}
+ Status = EFI_SUCCESS;
+
+EXIT:
//
// Free the buffer containing the list of handles from the handle database
//
if (DeviceHandleBuffer != NULL) {
gBS->FreePool (DeviceHandleBuffer);
}
- return EFI_SUCCESS;
+ return Status;
}
/**
|