plat win be robust against NULL wsi_from_fd 2

Signed-off-by: Andy Green <andy.green@linaro.org>

diff --git a/lib/lws-plat-win.c b/lib/lws-plat-win.c
index 5295679..afb640d 100644 (file)
--- a/lib/lws-plat-win.c
+++ b/lib/lws-plat-win.c
@@ -197,8 +197,10 @@ lws_plat_service(struct libwebsocket_context *context, int timeout_ms)
 
        pfd->revents = networkevents.lNetworkEvents;
 
-       if (pfd->revents & LWS_POLLOUT)
-               wsi_from_fd(context,pfd->fd)->sock_send_blocking = FALSE;
+       if (pfd->revents & LWS_POLLOUT) {
+               wsi = wsi_from_fd(context, pfd->fd);
+               wsi->sock_send_blocking = FALSE;
+       }
 
        return libwebsocket_service_fd(context, pfd);
 }