drm: Undo damage to page_flip_ioctl
I screwed up rebasing of my patch in commit 43968d7b Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed Sep 21 10:59:24 2016 +0200 drm: Extract drm_plane.[hc] which meant on error paths drm_crtc_vblank_put could be called without a get, leading to an underrun of the refcount. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98020Reported-and-tested-by: Andy Furniss <adf.lists@gmail.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Michel Dänzer <michel@daenzer.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161003082827.11586-1-daniel.vetter@ffwll.chSigned-off-by: Dave Airlie <airlied@redhat.com>
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