Merge tag 'drm-misc-fixes-2017-01-04' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes
single drm fix.
* tag 'drm-misc-fixes-2017-01-04' of git://anongit.freedesktop.org/git/drm-misc:
drm: Clean up planes in atomic commit helper failure path