setting miscdevice.parent after misc_register()

[Akinobu Mita]

In drivers/watchdog/at32ap700x_wdt.c, and drivers/watchdog/sch311x_wdt.c
miscdevice.parent is set after misc_register().

drivers/watchdog/at32ap700x_wdt.c:

	ret = misc_register(&wdt->miscdev);
	...
	wdt->miscdev.parent = &pdev->dev;

But it does nothing. (the miscdevice will not be a child of that parent
device in sysfs)

So should it be set before misc_register() or just keep it as-is?
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