port-serial: don't allow opens when a port is connected

2018-10-16 17:09:21 +00:00
parent 329caff84f
commit e5f65d1b27
1 changed files with 9 additions and 0 deletions
@@ -1175,6 +1175,15 @@ mm_port_serial_open (MMPortSerial *self, GError **error)
        return FALSE;
    }

+    if (mm_port_get_connected (MM_PORT (self))) {
+        g_set_error (error,
+                     MM_SERIAL_ERROR,
+                     MM_SERIAL_ERROR_OPEN_FAILED,
+                     "Could not open serial device %s: port is connected",
+                     device);
+        return FALSE;
+    }
+
    if (self->priv->open_count) {
        /* Already open */
        goto success;