diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 828f9ad1be49..ba31e97d3d96 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -975,7 +975,6 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port, port->closing_wait = closing_wait; if (new_info->xmit_fifo_size) uport->fifosize = new_info->xmit_fifo_size; - port->low_latency = (uport->flags & UPF_LOW_LATENCY) ? 1 : 0; check_and_exit: retval = 0; @@ -1795,8 +1794,6 @@ static int uart_port_activate(struct tty_port *port, struct tty_struct *tty) if (!uport || uport->flags & UPF_DEAD) return -ENXIO; - port->low_latency = (uport->flags & UPF_LOW_LATENCY) ? 1 : 0; - /* * Start up the serial port. */ @@ -2851,6 +2848,8 @@ static const struct attribute_group tty_dev_attr_group = { * @drv: pointer to the uart low level driver structure for this port * @uport: uart port structure to use for this port. * + * Context: task context, might sleep + * * This allows the driver to register its own uart_port structure * with the core driver. The main purpose is to allow the low * level uart drivers to expand uart_port, rather than having yet @@ -2864,8 +2863,6 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport) struct device *tty_dev; int num_groups; - BUG_ON(in_interrupt()); - if (uport->line >= drv->nr) return -EINVAL; @@ -2954,6 +2951,8 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport) * @drv: pointer to the uart low level driver structure for this port * @uport: uart port structure for this port * + * Context: task context, might sleep + * * This unhooks (and hangs up) the specified port structure from the * core driver. No further calls will be made to the low-level code * for this port. @@ -2966,8 +2965,6 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport) struct tty_struct *tty; int ret = 0; - BUG_ON(in_interrupt()); - mutex_lock(&port_mutex); /* |