Bluetooth: Attempt to clear HCI_LE_ADV on adv set terminated error event

We should clear the flag if the adv instance removed due to receiving
this error status is the last one we have.
Signed-off-by: NArchie Pusaka <apusaka@chromium.org>
Reviewed-by: NMiao-chen Chou <mcchou@chromium.org>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_event.c

@@ -5527,7 +5527,7 @@ static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_evt_le_ext_adv_set_term *ev = (void *) skb->data;
 	struct hci_conn *conn;
-	struct adv_info *adv;
+	struct adv_info *adv, *n;
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
 
@@ -5553,6 +5553,13 @@ static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_remove_adv_instance(hdev, ev->handle);
 		mgmt_advertising_removed(NULL, hdev, ev->handle);
 
+		list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
+			if (adv->enabled)
+				return;
+		}
+
+		/* We are no longer advertising, clear HCI_LE_ADV */
+		hci_dev_clear_flag(hdev, HCI_LE_ADV);
 		return;
 	}