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Netconn: Fix potential NULL pointer dereference (found by Coverity)

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This commit is contained in:
Dirk Ziegelmeier 2016-02-10 20:39:12 +01:00
parent 1c1587eef6
commit 78a36df901
1 changed files with 6 additions and 6 deletions
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12
src/api/api_msg.c
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@ -335,13 +335,13 @@ sent_tcp(void *arg, struct tcp_pcb *pcb, u16_t len)
LWIP_UNUSED_ARG(pcb);
LWIP_ASSERT("conn != NULL", (conn != NULL));
if (conn->state == NETCONN_WRITE) {
lwip_netconn_do_writemore(conn WRITE_DELAYED);
} else if (conn->state == NETCONN_CLOSE) {
lwip_netconn_do_close_internal(conn WRITE_DELAYED);
}
if (conn) {
if (conn->state == NETCONN_WRITE) {
lwip_netconn_do_writemore(conn WRITE_DELAYED);
} else if (conn->state == NETCONN_CLOSE) {
lwip_netconn_do_close_internal(conn WRITE_DELAYED);
}
/* If the queued byte- or pbuf-count drops below the configured low-water limit,
let select mark this pcb as writable again. */
if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT) &&