K 10 svn:author V 6 philip K 8 svn:date V 27 2008-03-02T11:33:54.000000Z K 7 svn:log V 206 MFC r1.174: Zero sc->vnode if mdsetcred() fails. This fixes the panic which happens when mdcreate_vnode() calls vn_close() and mddestroy() calls it again further down the error handling path. END