SMATCH: add missing LeaveCriticalSection

[Dan Kegel]

Michael Stefaniuc wrote:
> on some error path the critical section wasn't released.
> Found with smatch's help.

I'm impressed.  Didn't know smatch could detect this kind of
thing in Wine code.

For those who haven't heard of smatch, see http://smatch.sf.net
- Dan

-- 
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045