icera: create generic bearer when no net port available

https://bugzilla.gnome.org/show_bug.cgi?id=697374

plugins/icera/mm-broadband-modem-icera.c

@@ -732,6 +732,25 @@ broadband_bearer_icera_new_ready (GObject *source,
     g_object_unref (simple);
 }
 
+static void
+broadband_bearer_new_ready (GObject *source,
+                            GAsyncResult *res,
+                            GSimpleAsyncResult *simple)
+{
+    MMBearer *bearer = NULL;
+    GError *error = NULL;
+
+    bearer = mm_broadband_bearer_new_finish (res, &error);
+    if (!bearer)
+        g_simple_async_result_take_error (simple, error);
+    else
+        g_simple_async_result_set_op_res_gpointer (simple,
+                                                   bearer,
+                                                   (GDestroyNotify)g_object_unref);
+    g_simple_async_result_complete (simple);
+    g_object_unref (simple);
+}
+
 static void
 modem_create_bearer (MMIfaceModem *self,
                      MMBearerProperties *properties,
@@ -745,13 +764,24 @@ modem_create_bearer (MMIfaceModem *self,
                                         user_data,
                                         modem_create_bearer);
 
-    /* Otherwise create a Icera bearer */
-    mm_broadband_bearer_icera_new (
+    /* If we get a NET port, create Icera bearer */
+    if (mm_base_modem_peek_best_data_port (MM_BASE_MODEM (self), MM_PORT_TYPE_NET)) {
+        mm_broadband_bearer_icera_new (
+            MM_BROADBAND_MODEM (self),
+            MM_BROADBAND_MODEM_ICERA (self)->priv->default_ip_method,
+            properties,
+            NULL, /* cancellable */
+            (GAsyncReadyCallback)broadband_bearer_icera_new_ready,
+            result);
+        return;
+    }
+
+    /* Otherwise, plain generic broadband bearer */
+    mm_broadband_bearer_new (
         MM_BROADBAND_MODEM (self),
-        MM_BROADBAND_MODEM_ICERA (self)->priv->default_ip_method,
         properties,
         NULL, /* cancellable */
-        (GAsyncReadyCallback)broadband_bearer_icera_new_ready,
+        (GAsyncReadyCallback)broadband_bearer_new_ready,
         result);
 }