media: rcar-vin: unregister video device on driver removal
If the video device was registered by the complete() callback it should be unregistered when a device is unbound from the driver. Protect from printing an uninitialized video device node name by adding a check in rvin_v4l2_unregister() to identify that the video device is registered. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -272,6 +272,8 @@ static int rcar_vin_remove(struct platform_device *pdev)
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pm_runtime_disable(&pdev->dev);
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rvin_v4l2_unregister(vin);
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v4l2_async_notifier_unregister(&vin->notifier);
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v4l2_async_notifier_cleanup(&vin->notifier);
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@ -841,6 +841,9 @@ static const struct v4l2_file_operations rvin_fops = {
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void rvin_v4l2_unregister(struct rvin_dev *vin)
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{
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if (!video_is_registered(&vin->vdev))
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return;
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v4l2_info(&vin->v4l2_dev, "Removing %s\n",
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video_device_node_name(&vin->vdev));
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