From 8beb4399266a81162483b23dfcda19c067297929 Mon Sep 17 00:00:00 2001
From: David Lin <linpeng1577@gmail.com>
Date: Wed, 10 Jun 2020 23:27:25 +0800
Subject: [PATCH] Update ethernetif.c

---
 components/net/lwip-2.0.2/src/netif/ethernetif.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/components/net/lwip-2.0.2/src/netif/ethernetif.c b/components/net/lwip-2.0.2/src/netif/ethernetif.c
index 8d69897a4b..2fa528aa0d 100644
--- a/components/net/lwip-2.0.2/src/netif/ethernetif.c
+++ b/components/net/lwip-2.0.2/src/netif/ethernetif.c
@@ -494,20 +494,15 @@ rt_err_t eth_device_init_with_flag(struct eth_device *dev, const char *name, rt_
 #if LWIP_NETIF_HOSTNAME
 #define LWIP_HOSTNAME_LEN 16
     char *hostname = RT_NULL;
-    netif = (struct netif*) rt_malloc (sizeof(struct netif) + LWIP_HOSTNAME_LEN);
+    netif = (struct netif*) rt_calloc (1, sizeof(struct netif) + LWIP_HOSTNAME_LEN);
 #else
-    netif = (struct netif*) rt_malloc (sizeof(struct netif));
+    netif = (struct netif*) rt_calloc (1, sizeof(struct netif));
 #endif
     if (netif == RT_NULL)
     {
         rt_kprintf("malloc netif failed\n");
         return -RT_ERROR;
     }
-#if LWIP_NETIF_HOSTNAME
-    rt_memset(netif, 0, sizeof(struct netif)+ LWIP_HOSTNAME_LEN);
-#else
-    rt_memset(netif, 0, sizeof(struct netif));
-#endif
 
     /* set netif */
     dev->netif = netif;