serial8250_do_startup() adds UART_IER_RDI and UART_IER_RLSI to ier. serial8250_stop_rx() should remove both. This is what the serial-omap driver has been doing and is now moved to the 8250-core since it does no look to be *that* omap specific. Cc: heikki.krogerus@xxxxxxxxxxxxxxx Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> --- drivers/tty/serial/8250/8250_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 8f5fb81d5fad..e8df7cd85ba7 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -1389,7 +1389,7 @@ static void serial8250_stop_rx(struct uart_port *port) serial8250_rpm_get(up); - up->ier &= ~UART_IER_RLSI; + up->ier &= ~(UART_IER_RLSI | UART_IER_RDI); up->port.read_status_mask &= ~UART_LSR_DR; serial_port_out(port, UART_IER, up->ier); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html