From 99a9a885296ea13d5805723cba716172a95de75a Mon Sep 17 00:00:00 2001
From: Randy Mackay <rmackay9@yahoo.com>
Date: Fri, 17 Apr 2015 10:59:03 +0900
Subject: [PATCH] Filter: dt check fix for LPF

---
 libraries/Filter/LowPassFilter.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/Filter/LowPassFilter.h b/libraries/Filter/LowPassFilter.h
index 92a4e4e387..ea6f28f8b7 100644
--- a/libraries/Filter/LowPassFilter.h
+++ b/libraries/Filter/LowPassFilter.h
@@ -42,7 +42,7 @@ public:
 
     // add a new raw value to the filter, retrieve the filtered result
     float apply(float sample, float cutoff_freq, float dt) {
-        if (cutoff_freq <= 0.0f || dt < 0.0f) {
+        if (cutoff_freq <= 0.0f || dt <= 0.0f) {
             _output = sample;
             return _output;
         }