[PATCH 5.10 0/1] wifi: rtl8xxxu: Fix the error handling of the probe function

Svacer reports a NULL-pointer dereference in rtl8xxxu_probe(). After having been compared to a NULL value, pointer hw is passed as 1st parameter in call to ieee80211_free_hw(), where it is dereferenced. The problem is present in 5.10 stable release and can be fixed by the following upstream patch that can be cleanly applied to 5.10 branch.