[Bug 45080] Null pointer dereference in member function of D3D11 device

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45080

--- Comment #11 from Toni <eldrad at autistici.org> ---
Yep by the apitrace it looks like it's getting a null IDXGIDevice2 and that
might be the reason of a crash if the app is using the pointer blindly after
that. You can try returning IDXGIDevice1 instead on that query and see what
happens. If you get lucky IDXGIDevice2 specific methods won't be really used,
otherwise you would have to implement the interface more or less properly
(something like bug 41063), or more interfaces might be needed after that.

It might be smth else, but if that's the whole apitrace it doesn't seem to be
much more going on.

About using the debugger I can't help you but I'm sure there must be a way,
although by your previous info and the apitrace it already seems to be pointing
somewhere.

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