altosui: Don't deref null pyros when saving altimeter config

The check for no pyro config is to compare npyros against zero rather
than check the length of the pyros array as the latter may be null.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/altoslib/AltosConfigData.java b/altoslib/AltosConfigData.java
index 12659d88100322bffdca273180047356951551fa..45b95646dabfd4ab7687a67973544135d49ed0f5 100644 (file)
--- a/altoslib/AltosConfigData.java
+++ b/altoslib/AltosConfigData.java
@@ -476,7 +476,7 @@ public class AltosConfigData implements Iterable<String> {
                /* UI doesn't support AES key config */
 
                /* AO_PYRO_NUM */
-               if (pyros.length > 0) {
+               if (npyro > 0) {
                        for (int p = 0; p < pyros.length; p++) {
                                link.printf("c P %s\n",
                                                   pyros[p].toString());