731cce487a
The ->disable_plane hook always had a return value, but only since the introduction of primary planes was there any implementation that actually failed. So handle such failures correctly. Note that drm_plane_force_disable is special: In the modeset cleanup case we first disable all crtc, so primary planes should all be freed already. And in the fb helper we only reset non-primary planes. Still better be paranoid and add an early return. I don't see how this could happen, but it might fix the fb refcount underrun Thierry is seeing. Matt Roper spotted this issue. Cc: Thierry Reding <treding@nvidia.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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