[PATCH] winmm: RegQueryValueExW wants the size in bytes, not the size in characters.

[Andrew Eikum]

Thanks. These look good but we're in code freeze. I'll be happy to
sign-off on them after the freeze is over.

Andrew

On Mon, Dec 26, 2016 at 04:25:22PM +0100, Carlo Bramini wrote:
> There is a bug into dlls/winmm/playsound.c
> Function RegQueryValueExW accepts the size in bytes as parameter, not the size 
> in characters.
> 
> See:
> https://msdn.microsoft.com/en-us/library/windows/desktop/ms724911(v=vs.85).
> aspx
> 
> Sincerely.
> 
> Signed-off-by: Carlo Bramini <carlo_bramini at users.sourceforge.net> 
> 

> diff --git a/dlls/winmm/playsound.c b/dlls/winmm/playsound.c
> index 5d9aed0..6525db5 100644
> --- a/dlls/winmm/playsound.c
> +++ b/dlls/winmm/playsound.c
> @@ -140,7 +140,7 @@ static HMMIO	get_mmioFromProfile(UINT uFlags, LPCWSTR lpszName)
>          if (err != 0)
>              goto none;
>      }
> -    count = sizeof(str)/sizeof(str[0]);
> +    count = sizeof(str);
>      err = RegQueryValueExW(hSnd, NULL, 0, &type, (LPBYTE)str, &count);
>      RegCloseKey(hSnd);
>      if (err != 0 || !*str) goto none;

>