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bridgeif_input: check netif != NULL before calling netif_get_client_data()

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This commit is contained in:
goldsimon 2017-03-29 22:27:00 +02:00
parent ca9f57c09f
commit 5d600f72d2
1 changed files with 6 additions and 2 deletions
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8
src/netif/bridgeif.c
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@ -481,9 +481,13 @@ bridgeif_input(struct pbuf *p, struct netif *netif)
bridgeif_portmask_t dstports;
struct eth_addr *src, *dst;
bridgeif_private_t *br;
bridgeif_port_t *port = (bridgeif_port_t *)netif_get_client_data(netif, bridgeif_netif_client_id);
bridgeif_port_t *port;
if (p == NULL || netif == NULL) {
return ERR_VAL;
}
port = (bridgeif_port_t *)netif_get_client_data(netif, bridgeif_netif_client_id);
LWIP_ASSERT("port data not set", port != NULL);
if (p == NULL || netif == NULL || port == NULL || port->bridge == NULL) {
if (port == NULL || port->bridge == NULL) {
return ERR_VAL;
}
br = (bridgeif_private_t *)port->bridge;