cedarview-drm 20120717-0ubuntu1: cedarview-drm kernel module failed to build

[Ioannis Caltzidis]

i installed cedarview an my lts and got this error log:

DKMS make.log for cedarview-drm-20120717 for kernel 3.8.0-29-generic (i686)
So 27. Okt 17:27:02 CET 2013
make -C /lib/modules/3.8.0-29-generic/build M=`pwd` modules
make[1]: Betrete Verzeichnis '/usr/src/linux-headers-3.8.0-29-generic'
  CC [M] /var/lib/dkms/cedarview-drm/20120717/build/drm_auth.o
  CC [M] /var/lib/dkms/cedarview-drm/20120717/build/drm_buffer.o
  CC [M] /var/lib/dkms/cedarview-drm/20120717/build/drm_bufs.o
/var/lib/dkms/cedarview-drm/20120717/build/drm_bufs.c: In Funktion »drm_mapbufs«:
/var/lib/dkms/cedarview-drm/20120717/build/drm_bufs.c:1557:4: Fehler: Implizite Deklaration der Funktion »do_mmap« [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [/var/lib/dkms/cedarview-drm/20120717/build/drm_bufs.o] Fehler 1
make[1]: *** [_module_/var/lib/dkms/cedarview-drm/20120717/build] Fehler 2
make[1]: Verlasse Verzeichnis '/usr/src/linux-headers-3.8.0-29-generic'
make: *** [all] Fehler 2
~

any sugesstions ?

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: cedarview-drm 20120717-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
DKMSKernelVersion: 3.8.0-29-generic
Date: Sun Oct 27 17:27:16 2013
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release i386 (20130820.1)
MarkForUpload: True
PackageVersion: 20120717-0ubuntu1
SourcePackage: cedarview-drm-drivers
Title: cedarview-drm 20120717-0ubuntu1: cedarview-drm kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)