diff options
| -rw-r--r-- | ports/stm32/modusocket.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ports/stm32/modusocket.c b/ports/stm32/modusocket.c index 46d7240ca..9af6e371f 100644 --- a/ports/stm32/modusocket.c +++ b/ports/stm32/modusocket.c @@ -369,6 +369,13 @@ mp_uint_t socket_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int * } return 0; } + if (self->nic == MP_OBJ_NULL) { + if (request == MP_STREAM_POLL) { + return MP_STREAM_POLL_NVAL; + } + *errcode = MP_EINVAL; + return MP_STREAM_ERROR; + } return self->nic_type->ioctl(self, request, arg, errcode); } |