RangeFinder: remove divide-by-zero possibility

7 years ago · c627ed6ae3
1 changed files with 2 additions and 1 deletions
--- a/libraries/AP_RangeFinder/AP_RangeFinder_analog.cpp
+++ b/libraries/AP_RangeFinder/AP_RangeFinder_analog.cpp
@ -104,8 +104,9 @@ void AP_RangeFinder_analog::update(void)
				@@ -104,8 +104,9 @@ void AP_RangeFinder_analog::update(void)
    case RangeFinder::FUNCTION_HYPERBOLA:
        if (v <= offset) {
            dist_m = 0;
+        } else {
+            dist_m = scaling / (v - offset);
        }
-        dist_m = scaling / (v - offset);
        if (isinf(dist_m) || dist_m > _max_distance_cm * 0.01f) {
            dist_m = _max_distance_cm * 0.01f;
        }