Re: riched20: Avoid releasing a non-existent interface.

[Nikolay Sivov]

> -
>    This->txtSel->reOle = NULL;
> -
>    ITextSelection_Release(&This->txtSel->ITextSelection_iface);
> -
>    IOleClientSite_Release(&This->clientSite->IOleClientSite_iface);
> -
>    if(This->txtSel)
> -
>      {
> -
>        This->txtSel->reOle = NULL;
> -
>        ITextSelection_Release(&This->txtSel->ITextSelection_iface);
> -
>      }
> -
>    if(This->clientSite)
> -
>      {
> -
>        This->clientSite->reOle = NULL;
> -
>        IOleClientSite_Release(&This->clientSite->IOleClientSite_iface);
> -
>      }
>     heap_fr

This can't happen.
>   IOleClientSiteImpl *This = impl_from_IOleClientSite(iface);
>   ULONG ref = InterlockedDecrement(&This->ref);
>   if (ref == 0)
> -
>  {
> -
>    if(This->reOle)
> -
>      This->reOle->clientSite = NULL;
>     heap_free(This);
> -
>  }
> return ref;

Why do you need this?