[Bug 49174] Duplicate checking iter->parent in mshtml/htmlwindow.c

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49174

--- Comment #2 from Michael McGuire  ---
Or even:

void get_top_window(HTMLOuterWindow *window, HTMLOuterWindow **ret)
{
    HTMLOuterWindow *iter = window;

if (iter)
        while (iter->parent)
            iter = iter->parent;

*ret = iter;
}

I may be bored.