diff options
Diffstat (limited to 'MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c | 391 |
1 files changed, 181 insertions, 210 deletions
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c index f72ba55..9dccd6f 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c +++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c @@ -1,4 +1,6 @@ /** @file
+
+ The Ehci controller driver.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
@@ -9,15 +11,6 @@ http://opensource.org/licenses/bsd-license.php THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-Module Name:
-
- Ehci.c
-
-Abstract:
-
-
-Revision History
-
**/
@@ -47,17 +40,16 @@ USB_PORT_STATE_MAP mUsbPortChangeMap[] = { /**
Retrieves the capablility of root hub ports.
- @param This This EFI_USB_HC_PROTOCOL instance.
- @param MaxSpeed Max speed supported by the controller
- @param PortNumber Number of the root hub ports.
- @param Is64BitCapable Whether the controller supports 64-bit memory
- addressing.
+ @param This This EFI_USB_HC_PROTOCOL instance.
+ @param MaxSpeed Max speed supported by the controller.
+ @param PortNumber Number of the root hub ports.
+ @param Is64BitCapable Whether the controller supports 64-bit memory
+ addressing.
- @return EFI_SUCCESS : host controller capability were retrieved successfully.
- @return EFI_INVALID_PARAMETER : Either of the three capability pointer is NULL
+ @retval EFI_SUCCESS Host controller capability were retrieved successfully.
+ @retval EFI_INVALID_PARAMETER Either of the three capability pointer is NULL.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcGetCapability (
@@ -91,17 +83,16 @@ EhcGetCapability ( /**
Provides software reset for the USB host controller.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param Attributes A bit mask of the reset operation to perform.
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param Attributes A bit mask of the reset operation to perform.
- @return EFI_SUCCESS : The reset operation succeeded.
- @return EFI_INVALID_PARAMETER : Attributes is not valid.
- @return EFI_UNSUPPOURTED : The type of reset specified by Attributes is
- @return not currently supported by the host controller.
- @return EFI_DEVICE_ERROR : Host controller isn't halted to reset.
+ @retval EFI_SUCCESS The reset operation succeeded.
+ @retval EFI_INVALID_PARAMETER Attributes is not valid.
+ @retval EFI_UNSUPPOURTED The type of reset specified by Attributes is
+ not currently supported by the host controller.
+ @retval EFI_DEVICE_ERROR Host controller isn't halted to reset.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcReset (
@@ -170,17 +161,16 @@ ON_EXIT: /**
Retrieve the current state of the USB host controller.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param State Variable to return the current host controller
- state.
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param State Variable to return the current host controller
+ state.
- @return EFI_SUCCESS : Host controller state was returned in State.
- @return EFI_INVALID_PARAMETER : State is NULL.
- @return EFI_DEVICE_ERROR : An error was encountered while attempting to
- @return retrieve the host controller's current state.
+ @retval EFI_SUCCESS Host controller state was returned in State.
+ @retval EFI_INVALID_PARAMETER State is NULL.
+ @retval EFI_DEVICE_ERROR An error was encountered while attempting to
+ retrieve the host controller's current state.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcGetState (
@@ -214,16 +204,15 @@ EhcGetState ( /**
Sets the USB host controller to a specific state.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param State The state of the host controller that will be set.
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param State The state of the host controller that will be set.
- @return EFI_SUCCESS : The USB host controller was successfully placed
- @return in the state specified by State.
- @return EFI_INVALID_PARAMETER : State is invalid.
- @return EFI_DEVICE_ERROR : Failed to set the state due to device error.
+ @retval EFI_SUCCESS The USB host controller was successfully placed
+ in the state specified by State.
+ @retval EFI_INVALID_PARAMETER State is invalid.
+ @retval EFI_DEVICE_ERROR Failed to set the state due to device error.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcSetState (
@@ -290,18 +279,17 @@ EhcSetState ( /**
Retrieves the current status of a USB root hub port.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param PortNumber The root hub port to retrieve the state from. This
- value is zero-based.
- @param PortStatus Variable to receive the port state
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param PortNumber The root hub port to retrieve the state from.
+ This value is zero-based.
+ @param PortStatus Variable to receive the port state.
- @return EFI_SUCCESS : The status of the USB root hub port specified
- @return by PortNumber was returned in PortStatus.
- @return EFI_INVALID_PARAMETER : PortNumber is invalid.
- @return EFI_DEVICE_ERROR : Can't read register
+ @retval EFI_SUCCESS The status of the USB root hub port specified.
+ by PortNumber was returned in PortStatus.
+ @retval EFI_INVALID_PARAMETER PortNumber is invalid.
+ @retval EFI_DEVICE_ERROR Can't read register.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcGetRootHubPortStatus (
@@ -382,16 +370,15 @@ ON_EXIT: /**
Sets a feature for the specified root hub port.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param PortNumber Root hub port to set.
- @param PortFeature Feature to set
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param PortNumber Root hub port to set.
+ @param PortFeature Feature to set.
- @return EFI_SUCCESS : The feature specified by PortFeature was set
- @return EFI_INVALID_PARAMETER : PortNumber is invalid or PortFeature is invalid.
- @return EFI_DEVICE_ERROR : Can't read register
+ @retval EFI_SUCCESS The feature specified by PortFeature was set.
+ @retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.
+ @retval EFI_DEVICE_ERROR Can't read register.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcSetRootHubPortFeature (
@@ -490,19 +477,18 @@ ON_EXIT: /**
Clears a feature for the specified root hub port.
- @param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
- @param PortNumber Specifies the root hub port whose feature is
- requested to be cleared.
- @param PortFeature Indicates the feature selector associated with the
- feature clear request.
+ @param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
+ @param PortNumber Specifies the root hub port whose feature is
+ requested to be cleared.
+ @param PortFeature Indicates the feature selector associated with the
+ feature clear request.
- @return EFI_SUCCESS : The feature specified by PortFeature was cleared
- @return for the USB root hub port specified by PortNumber.
- @return EFI_INVALID_PARAMETER : PortNumber is invalid or PortFeature is invalid.
- @return EFI_DEVICE_ERROR : Can't read register
+ @retval EFI_SUCCESS The feature specified by PortFeature was cleared
+ for the USB root hub port specified by PortNumber.
+ @retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.
+ @retval EFI_DEVICE_ERROR Can't read register.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcClearRootHubPortFeature (
@@ -617,28 +603,27 @@ ON_EXIT: /**
Submits control transfer to a target USB device.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param DeviceAddress The target device address
- @param DeviceSpeed Target device speed.
- @param MaximumPacketLength Maximum packet size the default control transfer
- endpoint is capable of sending or receiving.
- @param Request USB device request to send
- @param TransferDirection Specifies the data direction for the data stage
- @param Data Data buffer to be transmitted or received from USB
- device.
- @param DataLength The size (in bytes) of the data buffer
- @param TimeOut Indicates the maximum timeout, in millisecond,
- @param Translator Transaction translator to be used by this device.
- @param TransferResult Return the result of this control transfer.
-
- @return EFI_SUCCESS : Transfer was completed successfully.
- @return EFI_OUT_OF_RESOURCES : The transfer failed due to lack of resources.
- @return EFI_INVALID_PARAMETER : Some parameters are invalid.
- @return EFI_TIMEOUT : Transfer failed due to timeout.
- @return EFI_DEVICE_ERROR : Transfer failed due to host controller or device error.
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param DeviceAddress The target device address.
+ @param DeviceSpeed Target device speed.
+ @param MaximumPacketLength Maximum packet size the default control transfer
+ endpoint is capable of sending or receiving.
+ @param Request USB device request to send.
+ @param TransferDirection Specifies the data direction for the data stage
+ @param Data Data buffer to be transmitted or received from USB
+ device.
+ @param DataLength The size (in bytes) of the data buffer.
+ @param TimeOut Indicates the maximum timeout, in millisecond.
+ @param Translator Transaction translator to be used by this device.
+ @param TransferResult Return the result of this control transfer.
+
+ @retval EFI_SUCCESS Transfer was completed successfully.
+ @retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resources.
+ @retval EFI_INVALID_PARAMETER Some parameters are invalid.
+ @retval EFI_TIMEOUT Transfer failed due to timeout.
+ @retval EFI_DEVICE_ERROR Transfer failed due to host controller or device error.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcControlTransfer (
@@ -775,35 +760,33 @@ ON_EXIT: /**
Submits bulk transfer to a bulk endpoint of a USB device.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param DeviceAddress Target device address
- @param EndPointAddress Endpoint number and its direction in bit 7. .
- @param DeviceSpeed Device speed, Low speed device doesn't support bulk
- transfer.
- @param MaximumPacketLength Maximum packet size the endpoint is capable of
- sending or receiving.
- @param DataBuffersNumber Number of data buffers prepared for the transfer.
- @param Data Array of pointers to the buffers of data to transmit
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param DeviceAddress Target device address.
+ @param EndPointAddress Endpoint number and its direction in bit 7.
+ @param DeviceSpeed Device speed, Low speed device doesn't support bulk
+ transfer.
+ @param MaximumPacketLength Maximum packet size the endpoint is capable of
+ sending or receiving.
+ @param DataBuffersNumber Number of data buffers prepared for the transfer.
+ @param Data Array of pointers to the buffers of data to transmit
from or receive into.
- @param DataLength The lenght of the data buffer
- @param DataToggle On input, the initial data toggle for the transfer;
- On output, it is updated to to next data toggle to
- use of the subsequent bulk
- transfer.
- @param Translator A pointr to the transaction translator data.
- @param TimeOut Indicates the maximum time, in millisecond, which
- the transfer is allowed to complete.
- @param TransferResult A pointer to the detailed result information of the
- bulk transfer.
-
- @return EFI_SUCCESS : The transfer was completed successfully.
- @return EFI_OUT_OF_RESOURCES : The transfer failed due to lack of resource.
- @return EFI_INVALID_PARAMETER : Some parameters are invalid.
- @return EFI_TIMEOUT : The transfer failed due to timeout.
- @return EFI_DEVICE_ERROR : The transfer failed due to host controller error.
+ @param DataLength The lenght of the data buffer.
+ @param DataToggle On input, the initial data toggle for the transfer;
+ On output, it is updated to to next data toggle to
+ use of the subsequent bulk transfer.
+ @param TimeOut Indicates the maximum time, in millisecond, which
+ the transfer is allowed to complete.
+ @param Translator A pointr to the transaction translator data.
+ @param TransferResult A pointer to the detailed result information of the
+ bulk transfer.
+
+ @retval EFI_SUCCESS The transfer was completed successfully.
+ @retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.
+ @retval EFI_INVALID_PARAMETER Some parameters are invalid.
+ @retval EFI_TIMEOUT The transfer failed due to timeout.
+ @retval EFI_DEVICE_ERROR The transfer failed due to host controller error.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcBulkTransfer (
@@ -918,32 +901,31 @@ ON_EXIT: Submits an asynchronous interrupt transfer to an
interrupt endpoint of a USB device.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param DeviceAddress Target device address
- @param EndPointAddress Endpoint number and its direction encoded in bit 7
- @param DeviceSpeed Indicates device speed.
- @param MaximumPacketLength Maximum packet size the target endpoint is capable
- @param IsNewTransfer If TRUE, to submit an new asynchronous interrupt
- transfer If FALSE, to remove the specified
- asynchronous interrupt
- @param DataToggle On input, the initial data toggle to use; on output,
- it is updated to indicate the next data toggle
- @param PollingInterval The he interval, in milliseconds, that the transfer
- is polled.
- @param DataLength The length of data to receive at the rate specified
- by PollingInterval.
- @param Translator Transaction translator to use.
- @param CallBackFunction Function to call at the rate specified by
- PollingInterval
- @param Context Context to CallBackFunction.
-
- @return EFI_SUCCESS : The request has been successfully submitted or canceled.
- @return EFI_INVALID_PARAMETER : Some parameters are invalid.
- @return EFI_OUT_OF_RESOURCES : The request failed due to a lack of resources.
- @return EFI_DEVICE_ERROR : The transfer failed due to host controller error.
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param DeviceAddress Target device address.
+ @param EndPointAddress Endpoint number and its direction encoded in bit 7
+ @param DeviceSpeed Indicates device speed.
+ @param MaximumPacketLength Maximum packet size the target endpoint is capable
+ @param IsNewTransfer If TRUE, to submit an new asynchronous interrupt
+ transfer If FALSE, to remove the specified
+ asynchronous interrupt.
+ @param DataToggle On input, the initial data toggle to use; on output,
+ it is updated to indicate the next data toggle.
+ @param PollingInterval The he interval, in milliseconds, that the transfer
+ is polled.
+ @param DataLength The length of data to receive at the rate specified
+ by PollingInterval.
+ @param Translator Transaction translator to use.
+ @param CallBackFunction Function to call at the rate specified by
+ PollingInterval.
+ @param Context Context to CallBackFunction.
+
+ @retval EFI_SUCCESS The request has been successfully submitted or canceled.
+ @retval EFI_INVALID_PARAMETER Some parameters are invalid.
+ @retval EFI_OUT_OF_RESOURCES The request failed due to a lack of resources.
+ @retval EFI_DEVICE_ERROR The transfer failed due to host controller error.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcAsyncInterruptTransfer (
@@ -1067,30 +1049,29 @@ ON_EXIT: Submits synchronous interrupt transfer to an interrupt endpoint
of a USB device.
- @param This This EFI_USB2_HC_PROTOCOL instance.
- @param DeviceAddress Target device address
- @param EndPointAddress Endpoint number and its direction encoded in bit 7
- @param DeviceSpeed Indicates device speed.
- @param MaximumPacketLength Maximum packet size the target endpoint is capable
- of sending or receiving.
- @param Data Buffer of data that will be transmitted to USB
- device or received from USB device.
- @param DataLength On input, the size, in bytes, of the data buffer; On
- output, the number of bytes transferred.
- @param DataToggle On input, the initial data toggle to use; on output,
- it is updated to indicate the next data toggle
- @param TimeOut Maximum time, in second, to complete
- @param Translator Transaction translator to use.
- @param TransferResult Variable to receive the transfer result
-
- @return EFI_SUCCESS : The transfer was completed successfully.
- @return EFI_OUT_OF_RESOURCES : The transfer failed due to lack of resource.
- @return EFI_INVALID_PARAMETER : Some parameters are invalid.
- @return EFI_TIMEOUT : The transfer failed due to timeout.
- @return EFI_DEVICE_ERROR : The failed due to host controller or device error
+ @param This This EFI_USB2_HC_PROTOCOL instance.
+ @param DeviceAddress Target device address.
+ @param EndPointAddress Endpoint number and its direction encoded in bit 7
+ @param DeviceSpeed Indicates device speed.
+ @param MaximumPacketLength Maximum packet size the target endpoint is capable
+ of sending or receiving.
+ @param Data Buffer of data that will be transmitted to USB
+ device or received from USB device.
+ @param DataLength On input, the size, in bytes, of the data buffer; On
+ output, the number of bytes transferred.
+ @param DataToggle On input, the initial data toggle to use; on output,
+ it is updated to indicate the next data toggle.
+ @param TimeOut Maximum time, in second, to complete.
+ @param Translator Transaction translator to use.
+ @param TransferResult Variable to receive the transfer result.
+
+ @return EFI_SUCCESS The transfer was completed successfully.
+ @return EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.
+ @return EFI_INVALID_PARAMETER Some parameters are invalid.
+ @return EFI_TIMEOUT The transfer failed due to timeout.
+ @return EFI_DEVICE_ERROR The failed due to host controller or device error
**/
-STATIC
EFI_STATUS
EFIAPI
EhcSyncInterruptTransfer (
@@ -1201,8 +1182,8 @@ ON_EXIT: Submits isochronous transfer to a target USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
- @param DeviceAddress Target device address
- @param EndPointAddress End point address with its direction
+ @param DeviceAddress Target device address.
+ @param EndPointAddress End point address with its direction.
@param DeviceSpeed Device speed, Low speed device doesn't support this
type.
@param MaximumPacketLength Maximum packet size that the endpoint is capable of
@@ -1211,14 +1192,13 @@ ON_EXIT: @param Data Array of pointers to the buffers of data that will
be transmitted to USB device or received from USB
device.
- @param DataLength The size, in bytes, of the data buffer
+ @param DataLength The size, in bytes, of the data buffer.
@param Translator Transaction translator to use.
- @param TransferResult Variable to receive the transfer result
+ @param TransferResult Variable to receive the transfer result.
- @return EFI_UNSUPPORTED : Isochronous transfer is unsupported.
+ @return EFI_UNSUPPORTED Isochronous transfer is unsupported.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcIsochronousTransfer (
@@ -1242,8 +1222,8 @@ EhcIsochronousTransfer ( Submits Async isochronous transfer to a target USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
- @param DeviceAddress Target device address
- @param EndPointAddress End point address with its direction
+ @param DeviceAddress Target device address.
+ @param EndPointAddress End point address with its direction.
@param DeviceSpeed Device speed, Low speed device doesn't support this
type.
@param MaximumPacketLength Maximum packet size that the endpoint is capable of
@@ -1252,16 +1232,15 @@ EhcIsochronousTransfer ( @param Data Array of pointers to the buffers of data that will
be transmitted to USB device or received from USB
device.
- @param DataLength The size, in bytes, of the data buffer
+ @param DataLength The size, in bytes, of the data buffer.
@param Translator Transaction translator to use.
- @param IsochronousCallBack Function to be called when the transfer complete
+ @param IsochronousCallBack Function to be called when the transfer complete.
@param Context Context passed to the call back function as
- parameter
+ parameter.
- @return EFI_UNSUPPORTED : Isochronous transfer isn't supported
+ @return EFI_UNSUPPORTED Isochronous transfer isn't supported.
**/
-STATIC
EFI_STATUS
EFIAPI
EhcAsyncIsochronousTransfer (
@@ -1281,29 +1260,22 @@ EhcAsyncIsochronousTransfer ( return EFI_UNSUPPORTED;
}
+/**
+ Entry point for EFI drivers.
+
+ @param ImageHandle EFI_HANDLE.
+ @param SystemTable EFI_SYSTEM_TABLE.
+
+ @return EFI_SUCCESS Success.
+ EFI_DEVICE_ERROR Fail.
+
+**/
EFI_STATUS
EFIAPI
EhcDriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
-/*++
-
-Routine Description:
-
- Entry point for EFI drivers.
-
-Arguments:
-
- ImageHandle - EFI_HANDLE
- SystemTable - EFI_SYSTEM_TABLE
-
-Returns:
-
- EFI_SUCCESS Success
- EFI_DEVICE_ERROR Fail
-
---*/
{
return EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
@@ -1322,11 +1294,11 @@ Returns: be supported.
@param This Protocol instance pointer.
- @param Controlle Handle of device to test
- @param RemainingDevicePath Not used
+ @param Controller Handle of device to test.
+ @param RemainingDevicePath Not used.
- @return EFI_SUCCESS : This driver supports this device.
- @return EFI_UNSUPPORTED : This driver does not support this device.
+ @return EFI_SUCCESS This driver supports this device.
+ @return EFI_UNSUPPORTED This driver does not support this device.
**/
EFI_STATUS
@@ -1393,16 +1365,15 @@ ON_EXIT: /**
- Create and initialize a USB2_HC_DEV
+ Create and initialize a USB2_HC_DEV.
- @param PciIo The PciIo on this device
- @param OriginalPciAttributes Original PCI attributes
+ @param PciIo The PciIo on this device.
+ @param OriginalPciAttributes Original PCI attributes.
- @return The allocated and initialized USB2_HC_DEV structure
- @return if created, otherwise NULL.
+ @return The allocated and initialized USB2_HC_DEV structure if created,
+ otherwise NULL.
**/
-STATIC
USB2_HC_DEV *
EhcCreateUsb2Hc (
IN EFI_PCI_IO_PROTOCOL *PciIo,
@@ -1471,16 +1442,16 @@ EhcCreateUsb2Hc ( /**
- Starting the Usb EHCI Driver
+ Starting the Usb EHCI Driver.
@param This Protocol instance pointer.
- @param Controller Handle of device to test
- @param RemainingDevicePath Not used
+ @param Controller Handle of device to test.
+ @param RemainingDevicePath Not used.
- @return EFI_SUCCESS : supports this device.
- @return EFI_UNSUPPORTED : do not support this device.
- @return EFI_DEVICE_ERROR : cannot be started due to device Error
- @return EFI_OUT_OF_RESOURCES : cannot allocate resources
+ @return EFI_SUCCESS supports this device.
+ @return EFI_UNSUPPORTED do not support this device.
+ @return EFI_DEVICE_ERROR cannot be started due to device Error.
+ @return EFI_OUT_OF_RESOURCES cannot allocate resources.
**/
EFI_STATUS
@@ -1668,12 +1639,12 @@ CLOSE_PCIIO: created by this driver.
@param This Protocol instance pointer.
- @param Controller Handle of device to stop driver on
- @param NumberOfChildren Number of Children in the ChildHandleBuffer
+ @param Controller Handle of device to stop driver on.
+ @param NumberOfChildren Number of Children in the ChildHandleBuffer.
@param ChildHandleBuffer List of handles for the children we need to stop.
- @return EFI_SUCCESS Success
- @return EFI_DEVICE_ERROR Fail
+ @return EFI_SUCCESS Success.
+ @return EFI_DEVICE_ERROR Fail.
**/
EFI_STATUS
@@ -1734,7 +1705,7 @@ EhcDriverBindingStop ( EhcFreeSched (Ehc);
- if (Ehc->ControllerNameTable) {
+ if (Ehc->ControllerNameTable != NULL) {
FreeUnicodeStringTable (Ehc->ControllerNameTable);
}
|