py: Make MP_OBJ_NEW_SMALL_INT cast arg to mp_int_t itself.

Addresses issue #724.

1 files changed, 2 insertions, 2 deletions

diff --git a/unix/file.c b/unix/file.c
index cdec1ad1af..76a44e187c 100644
--- a/unix/file.c
+++ b/unix/file.c
@@ -114,7 +114,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(fdfile___exit___obj, 4, 4, fdfile___e
 STATIC mp_obj_t fdfile_fileno(mp_obj_t self_in) {
     mp_obj_fdfile_t *self = self_in;
     check_fd_is_open(self);
-    return MP_OBJ_NEW_SMALL_INT((mp_int_t)self->fd);
+    return MP_OBJ_NEW_SMALL_INT(self->fd);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(fdfile_fileno_obj, fdfile_fileno);
 
@@ -167,7 +167,7 @@ STATIC mp_obj_t fdfile_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const
     const char *fname = mp_obj_str_get_str(args[0]);
     int fd = open(fname, mode, 0644);
     if (fd == -1) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT((mp_int_t)errno)));
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(errno)));
     }
     o->fd = fd;
     return o;