diff options
| -rw-r--r-- | shared-bindings/busio/UART.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/shared-bindings/busio/UART.c b/shared-bindings/busio/UART.c index 1b63d8d0e..9bad2468e 100644 --- a/shared-bindings/busio/UART.c +++ b/shared-bindings/busio/UART.c @@ -66,7 +66,11 @@ extern const busio_uart_parity_obj_t busio_uart_parity_odd_obj; STATIC mp_obj_t busio_uart_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) { mp_arg_check_num(n_args, n_kw, 0, MP_OBJ_FUN_ARGS_MAX, true); - busio_uart_obj_t *self = m_new_obj(busio_uart_obj_t); + // Always initially allocate the UART object within the long-lived heap. + // This is needed to avoid crashes with certain UART implementations which + // cannot accomodate being moved after creation. (See + // https://github.com/adafruit/circuitpython/issues/1056) + busio_uart_obj_t *self = m_new_ll_obj(busio_uart_obj_t); self->base.type = &busio_uart_type; mp_map_t kw_args; mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args); |