altosuilib: Don't crash when flashing an unknown device

[fw/altos] / altosuilib / AltosFlashUI.java

diff --git a/altosuilib/AltosFlashUI.java b/altosuilib/AltosFlashUI.java
index ffb39b8c2aae4e4e7b2035a9e780355114808bf8..37ab96614af52f73d4ab116aa9c39f9d457f480e 100644 (file)
--- a/altosuilib/AltosFlashUI.java
+++ b/altosuilib/AltosFlashUI.java
@@ -319,7 +319,7 @@ public class AltosFlashUI
                                return false;
                }
 
-               if (existing_config.radio_calibration_broken) {
+               if (existing_config != null && existing_config.radio_calibration_broken) {
                        int ret = JOptionPane.showConfirmDialog(this,
                                                                String.format("Radio calibration value %d may be incorrect\nFlash anyways?",
                                                                              existing_config.radio_calibration),