drm/sun4i: Unbind components before releasing DRM and memory

[ Upstream commit e02bc29b2cfa7806830d6da8b2322cddd67e8dfe ]

Our components may still be using the DRM device driver (if only to
access our driver's private data), so make sure to unbind them before
the final drm_dev_put.

Also release our reserved memory after component unbind instead of
before to match reverse creation order.

Fixes: f5a9ed867c83 ("drm/sun4i: Fix component unbinding and component master deletion")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424090413.6918-1-paul.kocialkowski@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 6270363..57f61ec 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -158,10 +158,11 @@ static void sun4i_drv_unbind(struct device *dev)
        drm_kms_helper_poll_fini(drm);
        sun4i_framebuffer_free(drm);
        drm_mode_config_cleanup(drm);
-       of_reserved_mem_device_release(dev);
-       drm_dev_put(drm);
 
        component_unbind_all(dev, NULL);
+       of_reserved_mem_device_release(dev);
+
+       drm_dev_put(drm);
 }
 
 static const struct component_master_ops sun4i_drv_master_ops = {