diff --git a/timer/lst_timer.cpp b/timer/lst_timer.cpp
index 7efba9bd..578c9a5b 100644
--- a/timer/lst_timer.cpp
+++ b/timer/lst_timer.cpp
@@ -71,6 +71,7 @@ void sort_timer_lst::del_timer(util_timer *timer)
     if ((timer == head) && (timer == tail))
     {
         delete timer;
+        timer = nullptr;
         head = NULL;
         tail = NULL;
         return;
@@ -80,6 +81,7 @@ void sort_timer_lst::del_timer(util_timer *timer)
         head = head->next;
         head->prev = NULL;
         delete timer;
+        timer = nullptr;
         return;
     }
     if (timer == tail)
@@ -87,11 +89,13 @@ void sort_timer_lst::del_timer(util_timer *timer)
         tail = tail->prev;
         tail->next = NULL;
         delete timer;
+        timer = nullptr;
         return;
     }
     timer->prev->next = timer->next;
     timer->next->prev = timer->prev;
     delete timer;
+    timer = nullptr;
 }
 void sort_timer_lst::tick()
 {
diff --git a/webserver.cpp b/webserver.cpp
index a9dfae0b..0d7e410a 100644
--- a/webserver.cpp
+++ b/webserver.cpp
@@ -197,7 +197,7 @@ void WebServer::deal_timer(util_timer *timer, int sockfd)
     LOG_INFO("close fd %d", users_timer[sockfd].sockfd);
 }
 
-bool WebServer::dealclinetdata()
+bool WebServer::dealclientdata()
 {
     struct sockaddr_in client_address;
     socklen_t client_addrlength = sizeof(client_address);
@@ -395,7 +395,7 @@ void WebServer::eventLoop()
             //处理新到的客户连接
             if (sockfd == m_listenfd)
             {
-                bool flag = dealclinetdata();
+                bool flag = dealclientdata();
                 if (false == flag)
                     continue;
             }
diff --git a/webserver.h b/webserver.h
index 7381a13e..12e2be7d 100644
--- a/webserver.h
+++ b/webserver.h
@@ -38,7 +38,7 @@ class WebServer
     void timer(int connfd, struct sockaddr_in client_address);
     void adjust_timer(util_timer *timer);
     void deal_timer(util_timer *timer, int sockfd);
-    bool dealclinetdata();
+    bool dealclientdata();
     bool dealwithsignal(bool& timeout, bool& stop_server);
     void dealwithread(int sockfd);
     void dealwithwrite(int sockfd);