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USB: serial: remove generic disconnect callback

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Remove the now empty generic disconnect callback and make the disconnect
callback non-mandatory.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2013-03-21 12:36:42 +01:00 committed by Greg Kroah-Hartman
parent f8f0ad8621
commit 0f16cfe39e
3 changed files with 2 additions and 9 deletions
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6
drivers/usb/serial/generic.c
View File

@ -45,7 +45,6 @@ struct usb_serial_driver usb_serial_generic_device = {
},
.id_table = generic_device_ids,
.num_ports = 1,
.disconnect = usb_serial_generic_disconnect,
.release = usb_serial_generic_release,
.throttle = usb_serial_generic_throttle,
.unthrottle = usb_serial_generic_unthrottle,
@ -500,11 +499,6 @@ int usb_serial_generic_resume(struct usb_serial *serial)
}
EXPORT_SYMBOL_GPL(usb_serial_generic_resume);
void usb_serial_generic_disconnect(struct usb_serial *serial)
{
}
EXPORT_SYMBOL_GPL(usb_serial_generic_disconnect);
void usb_serial_generic_release(struct usb_serial *serial)
{
}

4
drivers/usb/serial/usb-serial.c
View File

@ -1095,7 +1095,8 @@ static void usb_serial_disconnect(struct usb_interface *interface)
device_del(&port->dev);
}
}
serial->type->disconnect(serial);
if (serial->type->disconnect)
serial->type->disconnect(serial);
/* let the last holder of this object cause it to be cleaned up */
usb_serial_put(serial);
@ -1304,7 +1305,6 @@ static void fixup_generic(struct usb_serial_driver *device)
set_to_generic_if_null(device, chars_in_buffer);
set_to_generic_if_null(device, read_bulk_callback);
set_to_generic_if_null(device, write_bulk_callback);
set_to_generic_if_null(device, disconnect);
set_to_generic_if_null(device, release);
set_to_generic_if_null(device, process_read_urb);
set_to_generic_if_null(device, prepare_write_buffer);

1
include/linux/usb/serial.h
View File

@ -329,7 +329,6 @@ extern void usb_serial_generic_read_bulk_callback(struct urb *urb);
extern void usb_serial_generic_write_bulk_callback(struct urb *urb);
extern void usb_serial_generic_throttle(struct tty_struct *tty);
extern void usb_serial_generic_unthrottle(struct tty_struct *tty);
extern void usb_serial_generic_disconnect(struct usb_serial *serial);
extern void usb_serial_generic_release(struct usb_serial *serial);
extern int usb_serial_generic_register(void);
extern void usb_serial_generic_deregister(void);