[Bug 42546] DSOUND_PrimaryOpen() incorrect set buf size

https://bugs.winehq.org/show_bug.cgi?id=42546

--- Comment #3 from Ivan_83  ---
(In reply to Bruno Jesus from comment #1)
> Not sure if it is related but today earlier a patch related to this function
> was sent to the list.
> http://source.winehq.org/patches/data/130782

new_buflen = frames * sizeof(float);
as I write before - crash after a little time of work, sound with noise - looks
like this is not enough and some little mem peace after buf used in this case.

new_buflen = ((frames + 1) * wfx->nBlockAlign * sizeof(float));
My version - ok.