From 37c91133ffb8f09beac24da6b9fb01b5ff4eecfb Mon Sep 17 00:00:00 2001
From: David Cermak <cermak@espressif.com>
Date: Thu, 30 May 2019 16:59:24 +0200
Subject: [PATCH] esp_event: fix minor memory leak when overwriting alredy
 registered handler

---
 components/esp_event/esp_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/components/esp_event/esp_event.c b/components/esp_event/esp_event.c
index d5b5d66c5..b51a74cb5 100644
--- a/components/esp_event/esp_event.c
+++ b/components/esp_event/esp_event.c
@@ -180,6 +180,7 @@ static esp_err_t handler_instances_add(esp_event_handler_instances_t* handlers,
             if (handler == it->handler) {
                 it->arg = handler_arg;
                 ESP_LOGW(TAG, "handler already registered, overwriting");
+                free(handler_instance);
                 return ESP_OK;
             }
             last = it;