diff options
Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 34 |
1 files changed, 2 insertions, 32 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index d4809d5..c575738 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -55,7 +55,6 @@ static __u16 vendor = FTDI_VID; static __u16 product; struct ftdi_private { - struct kref kref; enum ftdi_chip_type chip_type; /* type of device, either SIO or FT8U232AM */ int baud_base; /* baud base clock for divisor setting */ @@ -910,7 +909,6 @@ static int ftdi_sio_probe(struct usb_serial *serial, static int ftdi_sio_port_probe(struct usb_serial_port *port); static int ftdi_sio_port_remove(struct usb_serial_port *port); static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port); -static void ftdi_close(struct usb_serial_port *port); static void ftdi_dtr_rts(struct usb_serial_port *port, int on); static void ftdi_process_read_urb(struct urb *urb); static int ftdi_prepare_write_buffer(struct usb_serial_port *port, @@ -950,7 +948,6 @@ static struct usb_serial_driver ftdi_sio_device = { .port_probe = ftdi_sio_port_probe, .port_remove = ftdi_sio_port_remove, .open = ftdi_open, - .close = ftdi_close, .dtr_rts = ftdi_dtr_rts, .throttle = usb_serial_generic_throttle, .unthrottle = usb_serial_generic_unthrottle, @@ -1687,7 +1684,6 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) return -ENOMEM; } - kref_init(&priv->kref); mutex_init(&priv->cfg_lock); priv->flags = ASYNC_LOW_LATENCY; @@ -1825,13 +1821,6 @@ static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) return 0; } -static void ftdi_sio_priv_release(struct kref *k) -{ - struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); - - kfree(priv); -} - static int ftdi_sio_port_remove(struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); @@ -1840,7 +1829,7 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) remove_sysfs_attrs(port); - kref_put(&priv->kref, ftdi_sio_priv_release); + kfree(priv); return 0; } @@ -1850,7 +1839,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) struct ktermios dummy; struct usb_device *dev = port->serial->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); - int result; /* No error checking for this (will get errors later anyway) */ /* See ftdi_sio.h for description of what is reset */ @@ -1869,12 +1857,7 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) ftdi_set_termios(tty, port, &dummy); } - /* Start reading from the device */ - result = usb_serial_generic_open(tty, port); - if (!result) - kref_get(&priv->kref); - - return result; + return usb_serial_generic_open(tty, port); } static void ftdi_dtr_rts(struct usb_serial_port *port, int on) @@ -1899,19 +1882,6 @@ static void ftdi_dtr_rts(struct usb_serial_port *port, int on) clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } -/* - * usbserial:__serial_close only calls ftdi_close if the point is open - * - * This only gets called when it is the last close - */ -static void ftdi_close(struct usb_serial_port *port) -{ - struct ftdi_private *priv = usb_get_serial_port_data(port); - - usb_serial_generic_close(port); - kref_put(&priv->kref, ftdi_sio_priv_release); -} - /* The SIO requires the first byte to have: * B0 1 * B1 0 |
