In cal_remove(), unregister the video devices as the first operation, before cleaning up the V4L2 objects, to avoid use-after-free. This isn't a complete solution yet, as video nodes can be kept open across unregistration. Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Reviewed-by: Benoit Parrot <bparrot@xxxxxx> --- drivers/media/platform/ti-vpe/cal.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 5f218ac5fb60..5580913a1356 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -2320,11 +2320,11 @@ static int cal_remove(struct platform_device *pdev) if (ctx) { ctx_dbg(1, ctx, "unregistering %s\n", video_device_node_name(&ctx->vdev)); - cal_camerarx_disable(ctx->phy); - v4l2_async_notifier_unregister(&ctx->notifier); - v4l2_async_notifier_cleanup(&ctx->notifier); - cal_ctx_v4l2_cleanup(ctx); cal_ctx_v4l2_unregister(ctx); + cal_camerarx_disable(ctx->phy); + v4l2_async_notifier_unregister(&ctx->notifier); + v4l2_async_notifier_cleanup(&ctx->notifier); + cal_ctx_v4l2_cleanup(ctx); } } -- Regards, Laurent Pinchart