hostapd: Do not start secondary BSS unless interface is enabled

It is possible for additional BSSs to be added while the primary
interface is still in the process of determining channel parameters (HT
co-ex scan, ACS, DFS). Do not enable secondary interfaces in such state
immediately, but instead, wait for the pending operation on the primary
interface to complete. Once that's done, the added extra BSSs will also
be enabled in hostapd_setup_interface_complete().

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

src/ap/hostapd.c

@@ -1768,7 +1768,8 @@ int hostapd_add_iface(struct hapd_interfaces *interfaces, char *buf)
 				  ETH_ALEN);
 
 			if (start_ctrl_iface_bss(hapd) < 0 ||
-			    hostapd_setup_bss(hapd, -1)) {
+			    (hapd_iface->state == HAPD_IFACE_ENABLED &&
+			     hostapd_setup_bss(hapd, -1))) {
 				hapd_iface->conf->num_bss--;
 				hapd_iface->num_bss--;
 				wpa_printf(MSG_DEBUG, "%s: free hapd %p %s",