According to lkml.org [1] proc_dir_entry::owner field was removed in 2.6.30, so for now you can fix it by simply removing or commenting all the lines using proc_dir_entry::owner in nv.c.
Krzesimir Nowak [1] http://lkml.org/lkml/2009/1/26/342 -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org