From 70d25eeeba1b7e471fc4e05ad0d8c451aab3cf5e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 18 Nov 2012 13:23:30 +0100 Subject: [PATCH] USB: opticon: make private data port specific Make private data port specific and move allocation and deallocation to port_probe and port_remove. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/opticon.c | 69 +++++++++++++++++++----------------- 1 file changed, 37 insertions(+), 32 deletions(-) diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 2fb71d8c3a95..0178cc748c0a 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -168,7 +168,7 @@ static int send_control_msg(struct usb_serial_port *port, u8 requesttype, static int opticon_open(struct tty_struct *tty, struct usb_serial_port *port) { - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); unsigned long flags; int result = 0; @@ -198,7 +198,7 @@ static int opticon_open(struct tty_struct *tty, struct usb_serial_port *port) static void opticon_close(struct usb_serial_port *port) { - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); /* shutdown our urbs */ usb_kill_urb(priv->bulk_read_urb); @@ -231,7 +231,7 @@ static void opticon_write_control_callback(struct urb *urb) static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; struct urb *urb; unsigned char *buffer; @@ -318,7 +318,7 @@ error_no_buffer: static int opticon_write_room(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); unsigned long flags; /* @@ -340,7 +340,7 @@ static int opticon_write_room(struct tty_struct *tty) static void opticon_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); unsigned long flags; spin_lock_irqsave(&priv->lock, flags); @@ -352,7 +352,7 @@ static void opticon_throttle(struct tty_struct *tty) static void opticon_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); unsigned long flags; int result, was_throttled; @@ -374,7 +374,7 @@ static void opticon_unthrottle(struct tty_struct *tty) static int opticon_tiocmget(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); unsigned long flags; int result = 0; @@ -394,7 +394,7 @@ static int opticon_tiocmset(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); unsigned long flags; bool rts; bool changed = false; @@ -455,7 +455,7 @@ static int opticon_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; - struct opticon_private *priv = usb_get_serial_data(port->serial); + struct opticon_private *priv = usb_get_serial_port_data(port); dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd); @@ -470,37 +470,37 @@ static int opticon_ioctl(struct tty_struct *tty, static int opticon_startup(struct usb_serial *serial) { - struct opticon_private *priv; - int retval = -ENOMEM; - if (!serial->num_bulk_in) { dev_err(&serial->dev->dev, "no bulk in endpoint\n"); return -ENODEV; } - /* create our private serial structure */ + return 0; +} + +static int opticon_port_probe(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + struct opticon_private *priv; + int retval = -ENOMEM; + 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); - priv->port = serial->port[0]; + priv->port = port; priv->bulk_read_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!priv->bulk_read_urb) { - dev_err(&serial->dev->dev, "out of memory\n"); + if (!priv->bulk_read_urb) goto error; - } - priv->buffer_size = 2 * priv->port->bulk_in_size; + priv->buffer_size = 2 * port->bulk_in_size; priv->bulk_in_buffer = kmalloc(priv->buffer_size, GFP_KERNEL); - if (!priv->bulk_in_buffer) { - dev_err(&serial->dev->dev, "out of memory\n"); + if (!priv->bulk_in_buffer) goto error; - } - priv->bulk_address = priv->port->bulk_in_endpointAddress; + priv->bulk_address = port->bulk_in_endpointAddress; usb_fill_bulk_urb(priv->bulk_read_urb, serial->dev, usb_rcvbulkpipe(serial->dev, @@ -508,9 +508,9 @@ static int opticon_startup(struct usb_serial *serial) priv->bulk_in_buffer, priv->buffer_size, opticon_read_bulk_callback, priv); - usb_set_serial_data(serial, priv); - return 0; + usb_set_serial_port_data(port, priv); + return 0; error: usb_free_urb(priv->bulk_read_urb); kfree(priv->bulk_in_buffer); @@ -518,18 +518,22 @@ error: return retval; } -static void opticon_release(struct usb_serial *serial) +static int opticon_port_remove(struct usb_serial_port *port) { - struct opticon_private *priv = usb_get_serial_data(serial); + struct opticon_private *priv = usb_get_serial_port_data(port); usb_free_urb(priv->bulk_read_urb); kfree(priv->bulk_in_buffer); kfree(priv); + + return 0; } static int opticon_suspend(struct usb_serial *serial, pm_message_t message) { - struct opticon_private *priv = usb_get_serial_data(serial); + struct opticon_private *priv; + + priv = usb_get_serial_port_data(serial->port[0]); usb_kill_urb(priv->bulk_read_urb); return 0; @@ -537,8 +541,8 @@ static int opticon_suspend(struct usb_serial *serial, pm_message_t message) static int opticon_resume(struct usb_serial *serial) { - struct opticon_private *priv = usb_get_serial_data(serial); struct usb_serial_port *port = serial->port[0]; + struct opticon_private *priv = usb_get_serial_port_data(port); int result; mutex_lock(&port->port.mutex); @@ -559,11 +563,12 @@ static struct usb_serial_driver opticon_device = { .id_table = id_table, .num_ports = 1, .attach = opticon_startup, + .port_probe = opticon_port_probe, + .port_remove = opticon_port_remove, .open = opticon_open, .close = opticon_close, .write = opticon_write, .write_room = opticon_write_room, - .release = opticon_release, .throttle = opticon_throttle, .unthrottle = opticon_unthrottle, .ioctl = opticon_ioctl, -- 2.20.1