setupapi - devinst.c some minor fixes

[Steven Edwards]

This is right from ReactOS svn but it applies clean to winehq cvs with some fuzz.

Changelog: Hervé Poussineau hpoussin at reactos.com
Add '\' between "System\CurrentControlSet\Class" and the GUID when creating the registry key name
Don't return FALSE but INVALID_HANDLE_VALUE in SetupDiOpenClassRegKeyExW

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: devinst.c.diff
Type: text/x-patch
Size: 843 bytes
Desc: 748789499-devinst.c.diff
Url : http://www.winehq.org/pipermail/wine-patches/attachments/20050701/d6adf280/devinst.c.bin