qcacmn: Fix double free in wlan_cfg80211_scan()

In wlan_cfg80211_scan(), when "DNBS check fails", mem free of scan req is
done. Mem free of scan req is done again at the label "err" which would
end up in a double free.

Change-Id: Ib757832c1bd54372fba45cbc5ee306d0d7b233b0
CRs-Fixed: 2408703
1 file changed