diff options
| author | Johan Hovold <jhovold@gmail.com> | 2013-04-16 18:01:30 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-17 19:05:35 +0200 |
| commit | a85796ee514954b1ef5efe8928ef38777aab8c2d (patch) | |
| tree | e7bca8f72e96c427e19291ea72226d49ec667e8f /drivers/usb/serial | |
| parent | USB: symbolserial: remove unused private data (diff) | |
| download | linux-a85796ee514954b1ef5efe8928ef38777aab8c2d.tar.xz linux-a85796ee514954b1ef5efe8928ef38777aab8c2d.zip | |
USB: symbolserial: move private-data allocation to port_probe
Allocate port-private data in port-probe rather than in attach.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/symbolserial.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c index 2c2bfa1994f8..9b1648945e7a 100644 --- a/drivers/usb/serial/symbolserial.c +++ b/drivers/usb/serial/symbolserial.c @@ -1,6 +1,7 @@ /* * Symbol USB barcode to serial driver * + * Copyright (C) 2013 Johan Hovold <jhovold@gmail.com> * Copyright (C) 2009 Greg Kroah-Hartman <gregkh@suse.de> * Copyright (C) 2009 Novell Inc. * @@ -35,7 +36,7 @@ struct symbol_private { static void symbol_int_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; - struct symbol_private *priv = usb_get_serial_data(port->serial); + struct symbol_private *priv = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; int status = urb->status; int result; @@ -153,30 +154,36 @@ static void symbol_unthrottle(struct tty_struct *tty) static int symbol_startup(struct usb_serial *serial) { - struct symbol_private *priv; - if (!serial->num_interrupt_in) { dev_err(&serial->dev->dev, "no interrupt-in endpoint\n"); return -ENODEV; } - /* create our private serial structure */ + return 0; +} + +static int symbol_port_probe(struct usb_serial_port *port) +{ + struct symbol_private *priv; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (priv == NULL) { - dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); + if (!priv) return -ENOMEM; - } + spin_lock_init(&priv->lock); - usb_set_serial_data(serial, priv); + usb_set_serial_port_data(port, priv); + return 0; } -static void symbol_release(struct usb_serial *serial) +static int symbol_port_remove(struct usb_serial_port *port) { - struct symbol_private *priv = usb_get_serial_data(serial); + struct symbol_private *priv = usb_get_serial_port_data(port); kfree(priv); + + return 0; } static struct usb_serial_driver symbol_device = { @@ -187,9 +194,10 @@ static struct usb_serial_driver symbol_device = { .id_table = id_table, .num_ports = 1, .attach = symbol_startup, + .port_probe = symbol_port_probe, + .port_remove = symbol_port_remove, .open = symbol_open, .close = symbol_close, - .release = symbol_release, .throttle = symbol_throttle, .unthrottle = symbol_unthrottle, .read_int_callback = symbol_int_callback, |