diff options
Diffstat (limited to 'drivers/usb/serial/generic.c')
| -rw-r--r-- | drivers/usb/serial/generic.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 1be8bea372a2..5cdf180cda23 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -417,7 +417,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) /* * Make sure URB is marked as free before checking the throttled flag * to avoid racing with unthrottle() on another CPU. Matches the - * smp_mb() in unthrottle(). + * smp_mb__after_atomic() in unthrottle(). */ smp_mb__after_atomic(); @@ -489,7 +489,7 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty) * Matches the smp_mb__after_atomic() in * usb_serial_generic_read_bulk_callback(). */ - smp_mb(); + smp_mb__after_atomic(); usb_serial_generic_submit_read_urbs(port, GFP_KERNEL); } @@ -609,12 +609,10 @@ EXPORT_SYMBOL_GPL(usb_serial_handle_break); * @tty: tty for the port * @status: new carrier detect status, nonzero if active */ -void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, +void usb_serial_handle_dcd_change(struct usb_serial_port *port, struct tty_struct *tty, unsigned int status) { - struct tty_port *port = &usb_port->port; - - dev_dbg(&usb_port->dev, "%s - status %d\n", __func__, status); + dev_dbg(&port->dev, "%s - status %d\n", __func__, status); if (tty) { struct tty_ldisc *ld = tty_ldisc_ref(tty); @@ -627,7 +625,7 @@ void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, } if (status) - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); else if (tty && !C_CLOCAL(tty)) tty_hangup(tty); } |