mdns: fix possible crash when mdns_free called while action queue not empty

diff --git a/components/mdns/mdns.c b/components/mdns/mdns.c
index a373a020869a9fb44fb319be915cc18ee4b768cc..eb6af498ccac33ccc92afe37c95736cea36cb67e 100644 (file)
--- 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;
 }