hostapd: Fix BSS channel checks in 40 MHz scan

hostapd/hw_features.c

@@ -329,7 +329,8 @@ static int ieee80211n_check_40mhz_5g(struct hostapd_iface *iface,
 	if (!match) {
 		for (i = 0; i < scan_res->num; i++) {
 			struct wpa_scan_res *bss = scan_res->res[i];
-			ieee80211n_get_pri_sec_chan(bss, &pri_chan, &sec_chan);
+			ieee80211n_get_pri_sec_chan(bss, &bss_pri_chan,
+						    &bss_sec_chan);
 			if (pri_chan == bss_sec_chan &&
 			    sec_chan == bss_pri_chan) {
 				wpa_printf(MSG_INFO, "Switch own primary and "