From 0b48653ed0dd9f0f918c0384b4f332d3cc46ac1a Mon Sep 17 00:00:00 2001
From: David Cermak <cermak@espressif.com>
Date: Fri, 15 Feb 2019 13:23:21 +0100
Subject: [PATCH] mdns: fix possible crash when mdns_free called while action
 queue not empty

---
 components/mdns/mdns.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/components/mdns/mdns.c b/components/mdns/mdns.c
index a373a02086..eb6af498cc 100644
--- a/components/mdns/mdns.c
+++ b/components/mdns/mdns.c
@@ -4011,6 +4011,8 @@ static esp_err_t _mdns_service_task_stop()
             vTaskDelay(10 / portTICK_PERIOD_MS);
         }
     }
+    vSemaphoreDelete(_mdns_service_semaphore);
+    _mdns_service_semaphore = NULL;
     return ESP_OK;
 }