diff --git a/drivers/rpmsg/rpmsg_port_uart.c b/drivers/rpmsg/rpmsg_port_uart.c index 6cfdfcdfd550f..76677e988eb24 100644 --- a/drivers/rpmsg/rpmsg_port_uart.c +++ b/drivers/rpmsg/rpmsg_port_uart.c @@ -216,7 +216,7 @@ rpmsg_port_uart_send_connect_req(FAR struct rpmsg_port_uart_s *rpuart) ssize_t ret = file_write(&rpuart->file, &ch, 1); if (ret != 1) { - rpmsgerr("Send connect request failed, ret=%d\n", ret); + rpmsgerr("Send connect request failed, ret=%zu\n", ret); PANIC(); } } @@ -232,7 +232,7 @@ rpmsg_port_uart_send_connect_ack(FAR struct rpmsg_port_uart_s *rpuart) ssize_t ret = file_write(&rpuart->file, &ch, 1); if (ret != 1) { - rpmsgerr("Send connect ack failed, ret=%d\n", ret); + rpmsgerr("Send connect ack failed, ret=%zu\n", ret); PANIC(); } }