lwip - Fixed handling of max sockets in socket_accept

geky · geky · commit 506aa3d4ea1d · 2016-08-29T17:37:13.000-05:00
diff --git a/features/net/FEATURE_IPV4/lwip-interface/lwip_stack.c b/features/net/FEATURE_IPV4/lwip-interface/lwip_stack.c
@@ -308,6 +308,9 @@ static int lwip_socket_accept(nsapi_stack_t *stack, nsapi_socket_t server, nsapi
 {
     struct lwip_socket *s = (struct lwip_socket *)server;
     struct lwip_socket *ns = lwip_arena_alloc();
+    if (!ns) {
+        return NSAPI_ERROR_NO_SOCKET;
+    }
 
     err_t err = netconn_accept(s->conn, &ns->conn);
     if (err != ERR_OK) {

Original file line number	Diff line number	Diff line change
`@@ -308,6 +308,9 @@ static int lwip_socket_accept(nsapi_stack_t *stack, nsapi_socket_t server, nsapi`
`308`	`308`	`{`
`309`	`309`	`struct lwip_socket s = (struct lwip_socket )server;`
`310`	`310`	`struct lwip_socket *ns = lwip_arena_alloc();`
	`311`	`+ if (!ns) {`
	`312`	`+ return NSAPI_ERROR_NO_SOCKET;`
	`313`	`+ }`
`311`	`314`
`312`	`315`	`err_t err = netconn_accept(s->conn, &ns->conn);`
`313`	`316`	`if (err != ERR_OK) {`