rtwn_parent not checking sc->sc_detached?

From: Farhan Khan <farhan_at_farhan.codes>
Date: Tue, 02 Aug 2022 20:26:52 UTC
Hi all,

This might be a nitpick (or maybe not), but I noticed the rtwn_parent function does not validate sc->sc_detached before continuing, though it is set in rtwn_detach. Should this validation be checked?

Pretty sure I've seen it in other places too.

- Farhan