dsound: Allow enough space for multi-channel frames.

[Andrew Eikum]

Signed-off-by: Andrew Eikum <aeikum at codeweavers.com>

On Tue, Feb 28, 2017 at 01:37:53PM +0000, Huw Davies wrote:
> Signed-off-by: Huw Davies <huw at codeweavers.com>
> ---
>  dlls/dsound/primary.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/dlls/dsound/primary.c b/dlls/dsound/primary.c
> index b10ba02..87b7e8e 100644
> --- a/dlls/dsound/primary.c
> +++ b/dlls/dsound/primary.c
> @@ -240,7 +240,7 @@ static HRESULT DSOUND_PrimaryOpen(DirectSoundDevice *device, WAVEFORMATEX *wfx,
>      /* reallocate emulated primary buffer */
>      if (forcewave || !mixfloat) {
>          if (!forcewave)
> -            new_buflen = frames * sizeof(float);
> +            new_buflen = frames * wfx->nChannels * sizeof(float);
>  
>          if (device->buffer)
>              newbuf = HeapReAlloc(GetProcessHeap(), 0, device->buffer, new_buflen);
> -- 
> 2.10.2
> 
> 
>