device: Do not use connman_element_set/get_string()

diff --git a/src/device.c b/src/device.c
index b1a3b17..3311fc9 100644 (file)
--- a/src/device.c
+++ b/src/device.c
@@ -956,9 +956,11 @@ int connman_device_set_string(struct connman_device *device,
        } else if (g_str_equal(key, "Path") == TRUE) {
                g_free(device->path);
                device->path = g_strdup(value);
+       } else {
+               return -EINVAL;
        }
 
-       return connman_element_set_string(&device->element, key, value);
+       return 0;
 }
 
 /**
@@ -984,7 +986,7 @@ const char *connman_device_get_string(struct connman_device *device,
        else if (g_str_equal(key, "Path") == TRUE)
                return device->path;
 
-       return connman_element_get_string(&device->element, key);
+       return NULL;
 }
 
 static void set_offlinemode(struct connman_element *element, gpointer user_data)