From f86a14ceabc9a491a197416dea015472bb18f10e Mon Sep 17 00:00:00 2001
From: Neil McKechnie <neilmck999@gmail.com>
Date: Thu, 12 Aug 2021 21:17:40 +0100
Subject: [PATCH] Servo profile - avoid overrun of array bounds.

---
 IO_PCA9685.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/IO_PCA9685.cpp b/IO_PCA9685.cpp
index a6bde29..dd2a607 100644
--- a/IO_PCA9685.cpp
+++ b/IO_PCA9685.cpp
@@ -129,7 +129,7 @@ void PCA9685::_write(VPIN vpin, int value) {
     s->numSteps = profile==Fast ? 10 : 
                   profile==Medium ? 20 : 
                   profile==Slow ? 40 : 
-                  profile==Bounce ? sizeof(_bounceProfile) : 
+                  profile==Bounce ? sizeof(_bounceProfile)-1 : 
                   1;
     s->state = value;
     s->stepNumber = 0;
@@ -163,7 +163,7 @@ void PCA9685::_writeAnalogue(VPIN vpin, int value, int profile) {
   s->numSteps = profile==Fast ? 10 : 
                 profile==Medium ? 20 : 
                 profile==Slow ? 40 : 
-                profile==Bounce ? sizeof(_bounceProfile) : 
+                profile==Bounce ? sizeof(_bounceProfile)-1 : 
                 1;
   s->stepNumber = 0;
   s->toPosition = min(value, 4095);