diff options
| -rw-r--r-- | MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c index 26f13dbfd0..568720d3ef 100644 --- a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c +++ b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c @@ -633,6 +633,7 @@ Uhci2ControlTransfer ( UINT8 *DataPhy;
VOID *DataMap;
BOOLEAN IsSlowDevice;
+ UINTN TransferDataLength;
Uhc = UHC_FROM_USB2_HC_PROTO (This);
TDs = NULL;
@@ -660,10 +661,16 @@ Uhci2ControlTransfer ( return EFI_INVALID_PARAMETER;
}
- if ((TransferDirection != EfiUsbNoData) && (DataLength == NULL)) {
+ if ((TransferDirection != EfiUsbNoData) && (Data == NULL || DataLength == NULL)) {
return EFI_INVALID_PARAMETER;
}
+ if (TransferDirection == EfiUsbNoData) {
+ TransferDataLength = 0;
+ } else {
+ TransferDataLength = *DataLength;
+ }
+
*TransferResult = EFI_USB_ERR_SYSTEM;
Status = EFI_DEVICE_ERROR;
@@ -702,7 +709,7 @@ Uhci2ControlTransfer ( PktId,
RequestPhy,
DataPhy,
- *DataLength,
+ TransferDataLength,
(UINT8) MaximumPacketLength,
IsSlowDevice
);
|