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Original BdsLibMatchDevicePaths() excludes end node when comparing 2 devices paths. When a short device path is the part of a long device path, the function would mistakenly recognize them as same device paths. 

So it should compare the entire device path, including the end node.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2099 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xli24 2006-12-14 05:23:10 +00:00
parent 4ef346cd4e
commit 4ef4e1eab5
1 changed files with 1 additions and 6 deletions
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7
EdkNt32Pkg/Library/EdkGenericBdsLib/BdsMisc.c
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@ -688,7 +688,6 @@ Returns:
DevicePath = Multi;
DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
Size -= sizeof (EFI_DEVICE_PATH_PROTOCOL);
//
// Search for the match of 'Single' in 'Multi'
@ -698,17 +697,13 @@ Returns:
// If the single device path is found in multiple device paths,
// return success
//
if (Size == 0) {
return FALSE;
}
if (CompareMem (Single, DevicePathInst, Size) == 0) {
gBS->FreePool (DevicePathInst);
return TRUE;
}
gBS->FreePool (DevicePathInst);
DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
Size -= sizeof (EFI_DEVICE_PATH_PROTOCOL);
}
return FALSE;