From 5989b5ee31cf60c4a86c2d7094fdbc0ddfab9d09 Mon Sep 17 00:00:00 2001
From: Matthew Selby <matthew_selby@yahoo.co.uk>
Date: Mon, 30 Jun 2025 16:23:01 +0100
Subject: [PATCH] PICO: pwm_beeper_pico add check for frequency != 0.

---
 src/platform/PICO/pwm_beeper_pico.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/platform/PICO/pwm_beeper_pico.c b/src/platform/PICO/pwm_beeper_pico.c
index 39a0a0e8bd..9f8dcaad5e 100644
--- a/src/platform/PICO/pwm_beeper_pico.c
+++ b/src/platform/PICO/pwm_beeper_pico.c
@@ -51,8 +51,9 @@ void pwmToggleBeeper(void)
 
 void beeperPwmInit(const ioTag_t tag, uint16_t frequency)
 {
+    // frequency should be non-zero when calling beeperPwmInit.
     IO_t beeperIO = IOGetByTag(tag);
-    if (beeperIO) {
+    if (beeperIO && frequency) {
         beeperGPIO = IO_GPIOPinIdx(beeperIO);
         IOInit(beeperIO, OWNER_BEEPER, 0);