diff options
| -rw-r--r-- | stmhal/uart.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/stmhal/uart.c b/stmhal/uart.c index 85feb32e0..177318aec 100644 --- a/stmhal/uart.c +++ b/stmhal/uart.c @@ -772,9 +772,9 @@ STATIC mp_uint_t pyb_uart_read(mp_obj_t self_in, void *buf_in, mp_uint_t size, i // wait for first char to become available if (!uart_rx_wait(self, self->timeout)) { - // we can either return 0 to indicate EOF (then read() method returns b'') - // or return EAGAIN error to indicate non-blocking (then read() method returns None) - return 0; + // return EAGAIN error to indicate non-blocking (then read() method returns None) + *errcode = EAGAIN; + return MP_STREAM_ERROR; } // read the data |