drivers/tty/serial/serial_core.c

143

if (!port || port->flags & UPF_DEAD || uart_tx_stopped(port))

drivers/tty/serial/serial_core.c

1943

if (!uport || uport->flags & UPF_DEAD)

drivers/tty/serial/serial_core.c

3103

uport->flags &= ~UPF_DEAD;

drivers/tty/serial/serial_core.c

3115

uport->flags |= UPF_DEAD;

drivers/tty/serial/serial_core.c

3283

port->flags |= UPF_DEAD;

drivers/tty/serial/serial_core.c

3335

port->flags |= UPF_DEAD;

drivers/tty/serial/serial_port.c

38

if (port->flags & UPF_DEAD)

drivers/tty/serial/serial_port.c

64

if (port->flags & UPF_DEAD)