mdns: fix crash after init if no memory for task

mdns init first starts timer task, then starts service task. if service task failed to be created, timer task needs to be stopped too.
fixed https://ezredmine.espressif.cn:8765/issues/28466

diff --git a/components/mdns/mdns.c b/components/mdns/mdns.c
index cf9d0c23a861e231d4579a3c77d2ceafbe5b3faf..a06e048d99840721951f0586d24b0b62d854f23b 100644 (file)
--- a/components/mdns/mdns.c
+++ b/components/mdns/mdns.c
@@ -4041,7 +4041,10 @@ static esp_err_t _mdns_service_task_start()
     if (!_mdns_service_task_handle) {
         xTaskCreatePinnedToCore(_mdns_service_task, "mdns", MDNS_SERVICE_STACK_DEPTH, NULL, 1, (TaskHandle_t * const)(&_mdns_service_task_handle), 0);
         if (!_mdns_service_task_handle) {
+            _mdns_stop_timer();
             MDNS_SERVICE_UNLOCK();
+            vSemaphoreDelete(_mdns_service_semaphore);
+            _mdns_service_semaphore = NULL;
             return ESP_FAIL;
         }
     }