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Release DHCP structure memory when netif is down.

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This commit is contained in:
XiaXiaotian 2017-10-12 17:03:44 +08:00
parent 3a4bd7f16c
commit ad1350f0ac
1 changed files with 8 additions and 0 deletions
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8
components/lwip/core/netif.c
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@ -369,6 +369,14 @@ netif_remove(struct netif *netif)
netif_set_down(netif);
}
#if LWIP_DHCP
/* netif not under DHCP control by default */
if (netif->dhcp) {
free(netif->dhcp);
netif->dhcp = NULL;
}
#endif /* LWIP_DHCP */
mib2_remove_ip4(netif);
/* this netif is default? */