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Subject[PATCH 3/3] drm/sun4i: Fix component unbinding and component master deletion
Date
For our component-backed driver to be properly removed, we need to
delete the component master in sun4i_drv_remove and make sure to call
component_unbind_all in the master's unbind so that all components are
unbound when the master is.

Fixes: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
drivers/gpu/drm/sun4i/sun4i_drv.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index af07291544a4..0ea365e54de1 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -137,6 +137,8 @@ static void sun4i_drv_unbind(struct device *dev)
drm_mode_config_cleanup(drm);
of_reserved_mem_device_release(dev);
drm_dev_put(drm);
+
+ component_unbind_all(dev, NULL);
}

static const struct component_master_ops sun4i_drv_master_ops = {
@@ -385,6 +387,8 @@ static int sun4i_drv_probe(struct platform_device *pdev)

static int sun4i_drv_remove(struct platform_device *pdev)
{
+ component_master_del(&pdev->dev, &sun4i_drv_master_ops);
+
return 0;
}

--
2.21.0
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