#define SUPPORT_SYSRQ
#endif
-#include <linux/version.h>
#include <linux/module.h>
#include <linux/serial.h>
#include <linux/circ_buf.h>
{
_enter("%s", port->name);
+ if (!port->uart.info || !port->uart.info->port.tty) {
+ mn10300_serial_dis_tx_intr(port);
+ return;
+ }
+
if (uart_tx_stopped(&port->uart) ||
uart_circ_empty(&port->uart.info->xmit))
mn10300_serial_dis_tx_intr(port);