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[ Upstream commit192b4af6cd] Since commit846c7dfc11("drm/atomic: Try to preserve the crtc enabled state in drm_atomic_remove_fb, v2."), removing the last framebuffer will no longer disable the corresponding pipeline, which causes the KMS core to complain about leaked connectors on driver unbind. Fix this by calling drm_atomic_helper_shutdown() on driver unbind, which will cause all display pipelines to be shut down and therefore drop the extra references on the connectors. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>