From 97e6110045298250c627eba5b10b7d96aec5a31a Mon Sep 17 00:00:00 2001
From: aineoae86-sys <ai.neo.ae86@gmail.com>
Date: Sun, 5 Jul 2026 19:44:25 +0800
Subject: [PATCH] fix: keep Tone pin owned until destruction

Tone::stop() only needs to detach the ticker. Clearing the pin pointer before the destructor runs leaks the DigitalOut allocated by the constructor.

Fixes #1073

Generated-by: OpenAI Codex
Signed-off-by: aineoae86-sys <ai.neo.ae86@gmail.com>
---
 cores/arduino/Tone.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/cores/arduino/Tone.cpp b/cores/arduino/Tone.cpp
index f02e4e936..a80e62237 100644
--- a/cores/arduino/Tone.cpp
+++ b/cores/arduino/Tone.cpp
@@ -37,7 +37,6 @@ class Tone {
 
     void stop(void) {
         ticker.detach();
-        pin = 0;
     }
 
     void start_timeout(void) {