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    Subject[ 093/133] drm: Destroy the planes prior to destroying the associated CRTC
    Date
    3.5-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Chris Wilson <chris@chris-wilson.co.uk>

    commit 3184009c36da413724f283e3c7ac9cc60c623bc4 upstream.

    As during the plane cleanup, we wish to disable the hardware and
    so may modify state on the associated CRTC, that CRTC must continue to
    exist until we are finished.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54101
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
    Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
    Tested-by: lu hua <huax.lu@intel.com>
    Signed-off-by: Dave Airlie <airlied@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/gpu/drm/drm_crtc.c | 8 ++++----
    1 file changed, 4 insertions(+), 4 deletions(-)

    --- a/drivers/gpu/drm/drm_crtc.c
    +++ b/drivers/gpu/drm/drm_crtc.c
    @@ -1034,15 +1034,15 @@ void drm_mode_config_cleanup(struct drm_
    fb->funcs->destroy(fb);
    }

    - list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
    - crtc->funcs->destroy(crtc);
    - }
    -
    list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
    head) {
    plane->funcs->destroy(plane);
    }

    + list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
    + crtc->funcs->destroy(crtc);
    + }
    +
    idr_remove_all(&dev->mode_config.crtc_idr);
    idr_destroy(&dev->mode_config.crtc_idr);
    }



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