diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-23 07:44:49 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-23 07:44:49 +0000 |
| commit | d12c6a78aaa2d5bb841733f9c758821875d07dae (patch) | |
| tree | bceef1c80c0c00f38793e42a025ab70e935c9e4e /MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c | |
| parent | 2256f1f7578365c7d8acadb77a1e95373faed78b (diff) | |
| download | edk2-platforms-d12c6a78aaa2d5bb841733f9c758821875d07dae.tar.xz | |
error handling enhancement for possible null pointer dereference
Signed-off-by: erictian
Reviewed-by: ydong10
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12437 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c index 4a5d8e8bc4..b63173d181 100644 --- a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c +++ b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c @@ -1,7 +1,7 @@ /** @file
The module to produce Usb Bus PPI.
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@@ -307,13 +307,13 @@ PeiHubEnumeration ( NewPeiUsbDevice->DeviceSpeed = (UINT8)IsPortLowSpeedDeviceAttached (PortStatus.PortStatus);
if(NewPeiUsbDevice->DeviceSpeed != EFI_USB_SPEED_HIGH) {
- if (PeiUsbDevice->DeviceSpeed == EFI_USB_SPEED_HIGH) {
- NewPeiUsbDevice->Translator.TranslatorPortNumber = (UINT8)Index;
- NewPeiUsbDevice->Translator.TranslatorHubAddress = *CurrentAddress;
- } else {
- CopyMem(&(NewPeiUsbDevice->Translator), &(PeiUsbDevice->Translator), sizeof(EFI_USB2_HC_TRANSACTION_TRANSLATOR));
+ if (PeiUsbDevice->DeviceSpeed == EFI_USB_SPEED_HIGH) {
+ NewPeiUsbDevice->Translator.TranslatorPortNumber = (UINT8)Index;
+ NewPeiUsbDevice->Translator.TranslatorHubAddress = *CurrentAddress;
+ } else {
+ CopyMem(&(NewPeiUsbDevice->Translator), &(PeiUsbDevice->Translator), sizeof(EFI_USB2_HC_TRANSACTION_TRANSLATOR));
}
- }
+ }
//
// Configure that Usb Device
@@ -380,18 +380,21 @@ PeiUsbEnumeration ( CurrentAddress = 0;
- if (Usb2HcPpi != NULL){
+ if (Usb2HcPpi != NULL) {
Usb2HcPpi->GetRootHubPortNumber (
PeiServices,
Usb2HcPpi,
(UINT8 *) &NumOfRootPort
);
- } else {
+ } else if (UsbHcPpi != NULL) {
UsbHcPpi->GetRootHubPortNumber (
PeiServices,
UsbHcPpi,
(UINT8 *) &NumOfRootPort
);
+ } else {
+ ASSERT (FALSE);
+ return EFI_INVALID_PARAMETER;
}
for (Index = 0; Index < NumOfRootPort; Index++) {
|