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| author | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-06-03 01:57:56 +0000 |
|---|---|---|
| committer | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-06-03 01:57:56 +0000 |
| commit | 134c1f33ed942219fa4bdd5b9525193ebff6360b (patch) | |
| tree | 232cced7c1e4dd4b231d02366088b5fa9a12931d /MdePkg/Library/UefiUsbLib | |
| parent | 35c218d7e6d542bb770858719676431b79ca1244 (diff) | |
| download | edk2-134c1f33ed942219fa4bdd5b9525193ebff6360b.tar.gz edk2-134c1f33ed942219fa4bdd5b9525193ebff6360b.tar.bz2 edk2-134c1f33ed942219fa4bdd5b9525193ebff6360b.zip | |
modify the implementation of GetInterface and GetConfiguration to force the high byte of output type parameters zero.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8447 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/UefiUsbLib')
| -rw-r--r-- | MdePkg/Library/UefiUsbLib/UsbDxeLib.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/MdePkg/Library/UefiUsbLib/UsbDxeLib.c b/MdePkg/Library/UefiUsbLib/UsbDxeLib.c index c27fb03499..521fdd0101 100644 --- a/MdePkg/Library/UefiUsbLib/UsbDxeLib.c +++ b/MdePkg/Library/UefiUsbLib/UsbDxeLib.c @@ -177,6 +177,8 @@ UsbGetInterface ( ASSERT (AlternateSetting != NULL);
ASSERT (Status != NULL);
+ *AlternateSetting = 0;
+
ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));
DevReq.RequestType = USB_DEV_GET_INTERFACE_REQ_TYPE;
@@ -283,6 +285,8 @@ UsbGetConfiguration ( ASSERT (ConfigurationValue != NULL);
ASSERT (Status != NULL);
+ *ConfigurationValue = 0;
+
ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));
DevReq.RequestType = USB_DEV_GET_CONFIGURATION_REQ_TYPE;
|