re: Updated drm code

[matthew green <mrg%eterna.com.au@localhost>]

   !    if ((cdev->d_flag & D_NEGOFFSAFE) != 0 &&
   !        off != UVM_UNKNOWN_OFFSET && off < 0)
                return(NULL);
     

for those paying attention, this should be "== 0" in the first line.
i'd already fixed that in my tree, but posted the wrong patch.


.mrg.