[PATCH/RFC 2/2] v4l: rcar-vin: Wait for device access to complete before unplugging

[Laurent Pinchart]

To avoid races between device access and unplug, call the
video_device_unplug() function in the platform driver remove handler.
This will unsure that all device access completes before the remove
handler proceeds to free resources.

Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
---
 drivers/media/platform/rcar-vin/rcar-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/rcar-vin/rcar-core.c 
b/drivers/media/platform/rcar-vin/rcar-core.c
index bd7976efa1fb..c5210f1d09ed 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -1273,6 +1273,7 @@ static int rcar_vin_remove(struct platform_device *pdev)
 
        pm_runtime_disable(&pdev->dev);
 
+       video_device_unplug(&vin->vdev);
 
        if (!vin->info->use_mc) {
                v4l2_async_notifier_unregister(&vin->notifier);
-- 
Regards,

Laurent Pinchart