hostapd: Make sure ctrl_iface is not initialized multiple times

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

hostapd/ctrl_iface.c

@@ -989,7 +989,10 @@ int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
 	int s = -1;
 	char *fname = NULL;
 
-	hapd->ctrl_sock = -1;
+	if (hapd->ctrl_sock > -1) {
+		wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
+		return 0;
+	}
 
 	if (hapd->conf->ctrl_interface == NULL)
 		return 0;

src/ap/hostapd.c

@@ -857,6 +857,7 @@ hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
 	hapd->conf = bss;
 	hapd->iface = hapd_iface;
 	hapd->driver = hapd->iconf->driver;
+	hapd->ctrl_sock = -1;
 
 	return hapd;
 }