diff options
| -rw-r--r-- | altosui/AltosConfigTD.java | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/altosui/AltosConfigTD.java b/altosui/AltosConfigTD.java index 4389e49b..9020ed9d 100644 --- a/altosui/AltosConfigTD.java +++ b/altosui/AltosConfigTD.java @@ -223,8 +223,10 @@ public class AltosConfigTD implements ActionListener { if (!config_version.get().equals("0.0")) break; been_there = true; - config.serial_line.printf("C\n "); - config.serial_line.flush_input(); + if (config != null && config.serial_line != null) { + config.serial_line.printf("C\n "); + config.serial_line.flush_input(); + } } } catch (InterruptedException ie) { } @@ -277,8 +279,10 @@ public class AltosConfigTD implements ActionListener { } void abort() { - serial_line.close(); - serial_line = null; + if (serial_line != null) { + serial_line.close(); + serial_line = null; + } JOptionPane.showMessageDialog(owner, String.format("Connection to \"%s\" failed", device.toShortString()), |