From 2bbb704c3e52610b4be194d112428ecda522a8ad Mon Sep 17 00:00:00 2001
From: Damjan Adamic <projectkk2glider@gmail.com>
Date: Sun, 26 Mar 2017 19:16:08 +0200
Subject: [PATCH] Fixed: AudioQueue::playTone() with 0 frequency caused radio
 reboot (divide by zero)

---
 radio/src/audio_arm.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/radio/src/audio_arm.cpp b/radio/src/audio_arm.cpp
index 305ecac3d..d5023ad2e 100644
--- a/radio/src/audio_arm.cpp
+++ b/radio/src/audio_arm.cpp
@@ -833,9 +833,7 @@ void AudioQueue::playTone(uint16_t freq, uint16_t len, uint16_t pause, uint8_t f
 
   CoEnterMutexSection(audioMutex);
 
-  if (freq && freq < BEEP_MIN_FREQ) {
-    freq = BEEP_MIN_FREQ;
-  }
+  freq = limit<uint16_t>(BEEP_MIN_FREQ, freq, BEEP_MAX_FREQ);
 
   if (flags & PLAY_BACKGROUND) {
     varioContext.setFragment(freq, len, pause, 0, 0, (flags & PLAY_NOW));