Fix: crash if wpa_supplicant has already connected (#2394)
Fix: crash if wpa_supplicant has already connected (#2394)

Hzj-jie/koreader,NiLuJe/koreader,Frenzie/koreader,poire-z/koreader,houqp/koreader,Markismus/koreader,robert00s/koreader,mihailim/koreader,poire-z/koreader,Frenzie/koreader,pazos/koreader,koreader/koreader,apletnev/koreader,koreader/koreader,lgeek/koreader,NiLuJe/koreader,NickSavage/koreader,mwoz123/koreader