altoslib: Allow for missing product when checking for mma655x inverted

If there's no product, assume we've got some ancient log file.

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

1 files changed, 10 insertions, 8 deletions

diff --git a/altoslib/AltosConfigData.java b/altoslib/AltosConfigData.java
index 97a80bcb..63c34310 100644
--- a/altoslib/AltosConfigData.java
+++ b/altoslib/AltosConfigData.java
@@ -488,14 +488,16 @@ public class AltosConfigData {
 
 
 	public boolean mma655x_inverted() throws AltosUnknownProduct {
-		if (product.startsWith("EasyMega-v1"))
-			return false;
-		if (product.startsWith("TeleMetrum-v2"))
-			return true;
-		if (product.startsWith("TeleMega-v2"))
-			return false;
-		if (product.startsWith("TeleMega-v1"))
-			return false;
+		if (product != null) {
+			if (product.startsWith("EasyMega-v1"))
+				return false;
+			if (product.startsWith("TeleMetrum-v2"))
+				return true;
+			if (product.startsWith("TeleMega-v2"))
+				return false;
+			if (product.startsWith("TeleMega-v1"))
+				return false;
+		}
 		throw new AltosUnknownProduct(product);
 	}