wwan: make NM_MODEM_DATA_PORT not a construct property

The property was never set at construct time. Don't make
it a construct property.

src/devices/wwan/nm-device-modem.c

@@ -629,11 +629,7 @@ set_modem (NMDeviceModem *self, NMModem *modem)
 	g_signal_connect (modem, NM_MODEM_STATE_CHANGED, G_CALLBACK (modem_state_cb), self);
 	g_signal_connect (modem, NM_MODEM_REMOVED, G_CALLBACK (modem_removed_cb), self);
 
-	/* In the old ModemManager the data port is known from the very beginning;
-	 * while in the new ModemManager the data port is set afterwards when the bearer gets
-	 * created */
 	g_signal_connect (modem, "notify::" NM_MODEM_DATA_PORT, G_CALLBACK (data_port_changed_cb), self);
-
 	g_signal_connect (modem, "notify::" NM_MODEM_DEVICE_ID, G_CALLBACK (ids_changed_cb), self);
 	g_signal_connect (modem, "notify::" NM_MODEM_SIM_ID, G_CALLBACK (ids_changed_cb), self);
 	g_signal_connect (modem, "notify::" NM_MODEM_SIM_OPERATOR_ID, G_CALLBACK (ids_changed_cb), self);
@@ -706,9 +702,9 @@ nm_device_modem_init (NMDeviceModem *self)
 NMDevice *
 nm_device_modem_new (NMModem *modem)
 {
+	NMDevice *self;
 	NMDeviceModemCapabilities caps = NM_DEVICE_MODEM_CAPABILITY_NONE;
 	NMDeviceModemCapabilities current_caps = NM_DEVICE_MODEM_CAPABILITY_NONE;
-	NMDevice *device;
 	const char *data_port;
 
 	g_return_val_if_fail (NM_IS_MODEM (modem), NULL);
@@ -716,7 +712,7 @@ nm_device_modem_new (NMModem *modem)
 	/* Load capabilities */
 	nm_modem_get_capabilities (modem, &caps, &current_caps);
 
-	device = (NMDevice *) g_object_new (NM_TYPE_DEVICE_MODEM,
+	self = g_object_new (NM_TYPE_DEVICE_MODEM,
 	                     NM_DEVICE_UDI, nm_modem_get_path (modem),
 	                     NM_DEVICE_IFACE, nm_modem_get_uid (modem),
 	                     NM_DEVICE_DRIVER, nm_modem_get_driver (modem),
@@ -731,11 +727,11 @@ nm_device_modem_new (NMModem *modem)
 	/* If the data port is known, set it as the IP interface immediately */
 	data_port = nm_modem_get_data_port (modem);
 	if (data_port) {
-		nm_device_set_ip_iface (device, data_port);
+		nm_device_set_ip_iface (self, data_port);
-		nm_device_ipv6_sysctl_set (device, "disable_ipv6", "1");
+		nm_device_ipv6_sysctl_set (self, "disable_ipv6", "1");
 	}
 
-	return device;
+	return self;
 }
 
 static void

src/devices/wwan/nm-modem-broadband.c

@@ -1409,35 +1409,34 @@ nm_modem_broadband_init (NMModemBroadband *self)
 NMModem *
 nm_modem_broadband_new (GObject *object, GError **error)
 {
-	NMModem *modem;
 	MMObject *modem_object;
 	MMModem *modem_iface;
-	gchar *drivers;
+	const char *const*drivers;
+	gs_free char *driver = NULL;
 
 	g_return_val_if_fail (MM_IS_OBJECT (object), NULL);
 	modem_object = MM_OBJECT (object);
 
 	/* Ensure we have the 'Modem' interface and the primary port at least */
 	modem_iface = mm_object_peek_modem (modem_object);
-	g_return_val_if_fail (!!modem_iface, NULL);
+	g_return_val_if_fail (modem_iface, NULL);
-	g_return_val_if_fail (!!mm_modem_get_primary_port (modem_iface), NULL);
+	g_return_val_if_fail (mm_modem_get_primary_port (modem_iface), NULL);
 
 	/* Build a single string with all drivers listed */
-	drivers = g_strjoinv (", ", (gchar **)mm_modem_get_drivers (modem_iface));
+	drivers = mm_modem_get_drivers (modem_iface);
+	if (drivers)
+		driver = g_strjoinv (", ", (char **) drivers);
 
-	modem = g_object_new (NM_TYPE_MODEM_BROADBAND,
+	return g_object_new (NM_TYPE_MODEM_BROADBAND,
 	                     NM_MODEM_PATH, mm_object_get_path (modem_object),
 	                     NM_MODEM_UID, mm_modem_get_primary_port (modem_iface),
 	                     NM_MODEM_CONTROL_PORT, mm_modem_get_primary_port (modem_iface),
-	                      NM_MODEM_DATA_PORT, NULL, /* We don't know it until bearer created */
 	                     NM_MODEM_IP_TYPES, mm_ip_family_to_nm (mm_modem_get_supported_ip_families (modem_iface)),
 	                     NM_MODEM_STATE, (int) mm_state_to_nm (mm_modem_get_state (modem_iface)),
 	                     NM_MODEM_DEVICE_ID, mm_modem_get_device_identifier (modem_iface),
 	                     NM_MODEM_BROADBAND_MODEM, modem_object,
-	                      NM_MODEM_DRIVER, drivers,
+	                     NM_MODEM_DRIVER, driver,
 	                     NULL);
-	g_free (drivers);
-	return modem;
 }
 
 static void

src/devices/wwan/nm-modem.c

@@ -1690,7 +1690,7 @@ constructed (GObject *object)
 
 	priv = NM_MODEM_GET_PRIVATE (NM_MODEM (object));
 
-	g_return_if_fail (priv->data_port || priv->control_port);
+	g_return_if_fail (priv->control_port);
 }
 
 /*****************************************************************************/
@@ -1767,7 +1767,7 @@ nm_modem_class_init (NMModemClass *klass)
 	obj_properties[PROP_DATA_PORT] =
 	     g_param_spec_string (NM_MODEM_DATA_PORT, "", "",
 	                          NULL,
-	                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
+	                          G_PARAM_READWRITE |
 	                          G_PARAM_STATIC_STRINGS);
 
 	obj_properties[PROP_IP_IFINDEX] =