Re: drm trivial build fix

[Taylor R Campbell]

   Date: Mon, 24 Nov 2014 16:29:03 +0000
   From: Patrick Welche <pr...@cam.ac.uk>

   I found I needed this in the no options SYSCTL_INCLUDE_DESCR case, to
   avoid -Werror.
   OK to commit?

OK by me!