[Bug 17518] winmm/mci tests fail with +heap enabled

http://bugs.winehq.org/show_bug.cgi?id=17518

--- Comment #1 from Rico   2009-03-02 06:26:17 ---
Created an attachment (id=19744)
 --> (http://bugs.winehq.org/attachment.cgi?id=19744)
Zero lpwstrRet, before trying to do anything with it.

Austin, 
could you try this patch?
Another solution is to check the return value ( if (lpwstrRet && ret==0) ), but
that assumes that in failure case there is never written anything useful to the
lpwstrRet.