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Commit 93c46795 authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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empeg: Coding style 



Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 41ad427d

drivers/usb/serial/empeg.c

+107 −96
Original line number Diff line number Diff line
@@ -11,14 +11,16 @@ 
 *	it under the terms of the GNU General Public License, as published by

 *	the Free Software Foundation, version 2.

 *

 * See Documentation/usb/usb-serial.txt for more information on using this driver

 * See Documentation/usb/usb-serial.txt for more information on using this

 * driver

 *

 * (07/16/2001) gb

 *	remove unused code in empeg_close() (thanks to Oliver Neukum for pointing this

 *	out) and rewrote empeg_set_termios().

 *	remove unused code in empeg_close() (thanks to Oliver Neukum for

 *	pointing this out) and rewrote empeg_set_termios().

 *

 * (05/30/2001) gkh

 *	switched from using spinlock to a semaphore, which fixes lots of problems.

 *	switched from using spinlock to a semaphore, which fixes lots of

 * problems.

 *

 * (04/08/2001) gb

 *      Identify version on module load.
@@ -31,12 +33,13 @@ 
 *	Moved MOD_DEC_USE_COUNT to end of empeg_close().

 *

 * (12/03/2000) gb

 *	Added port->port.tty->ldisc.set_termios(port->port.tty, NULL) to empeg_open()

 *	This notifies the tty driver that the termios have changed.

 *	Added port->port.tty->ldisc.set_termios(port->port.tty, NULL) to

 *	empeg_open(). This notifies the tty driver that the termios have

 *	changed.

 *

 * (11/13/2000) gb

 *	Moved tty->low_latency = 1 from empeg_read_bulk_callback() to empeg_open()

 *	(It only needs to be set once - Doh!)

 *	Moved tty->low_latency = 1 from empeg_read_bulk_callback() to

 *	empeg_open() (It only needs to be set once - Doh!)

 *

 * (11/11/2000) gb

 *	Updated to work with id_table structure.
@@ -60,7 +63,7 @@ 
#include <linux/tty_flip.h>

#include <linux/module.h>

#include <linux/spinlock.h>

#include <asm/uaccess.h>

#include <linux/uaccess.h>

#include <linux/usb.h>

#include <linux/usb/serial.h>
@@ -77,8 +80,10 @@ static int debug; 
#define EMPEG_PRODUCT_ID		0x0001



/* function prototypes for an empeg-car player */

static int  empeg_open			(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);

static void empeg_close			(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);

static int  empeg_open(struct tty_struct *tty, struct usb_serial_port *port,

						struct file *filp);

static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port,

						struct file *filp);

static int  empeg_write(struct tty_struct *tty, struct usb_serial_port *port,

						const unsigned char *buf,

						int count);
@@ -88,7 +93,8 @@ static void empeg_throttle (struct tty_struct *tty); 
static void empeg_unthrottle(struct tty_struct *tty);

static int  empeg_startup(struct usb_serial *serial);

static void empeg_shutdown(struct usb_serial *serial);

static void empeg_set_termios		(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios);

static void empeg_set_termios(struct tty_struct *tty,

		struct usb_serial_port *port, struct ktermios *old_termios);

static void empeg_write_bulk_callback(struct urb *urb);

static void empeg_read_bulk_callback(struct urb *urb);
@@ -168,7 +174,9 @@ static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port, 
	result = usb_submit_urb(port->read_urb, GFP_KERNEL);



	if (result)

		dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __func__, result);

		dev_err(&port->dev,

			"%s - failed submitting read urb, error %d\n",

							__func__, result);



	return result;

}
@@ -186,7 +194,8 @@ static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port, 
}





static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count)

static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port,

					const unsigned char *buf, int count)

{

	struct usb_serial *serial = port->serial;

	struct urb *urb;
@@ -222,7 +231,9 @@ static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port, con 
		if (urb->transfer_buffer == NULL) {

			urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC);

			if (urb->transfer_buffer == NULL) {

				dev_err(&port->dev, "%s no more kernel memory...\n", __func__);

				dev_err(&port->dev,

					"%s no more kernel memory...\n",

								__func__);

				goto exit;

			}

		}
@@ -275,10 +286,9 @@ static int empeg_write_room(struct tty_struct *tty) 
	spin_lock_irqsave(&write_urb_pool_lock, flags);

	/* tally up the number of bytes available */

	for (i = 0; i < NUM_URBS; ++i) {

		if (write_urb_pool[i]->status != -EINPROGRESS) {

		if (write_urb_pool[i]->status != -EINPROGRESS)

			room += URB_TRANSFER_BUFFER_SIZE;

	}

	} 

	spin_unlock_irqrestore(&write_urb_pool_lock, flags);

	dbg("%s - returns %d", __func__, room);

	return room;
@@ -299,17 +309,13 @@ static int empeg_chars_in_buffer(struct tty_struct *tty) 


	/* tally up the number of bytes waiting */

	for (i = 0; i < NUM_URBS; ++i) {

		if (write_urb_pool[i]->status == -EINPROGRESS) {

		if (write_urb_pool[i]->status == -EINPROGRESS)

			chars += URB_TRANSFER_BUFFER_SIZE;

	}

	}



	spin_unlock_irqrestore(&write_urb_pool_lock, flags);



	dbg("%s - returns %d", __func__, chars);



	return (chars);



	return chars;

}
@@ -346,8 +352,8 @@ static void empeg_read_bulk_callback (struct urb *urb) 
		return;

	}



	usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);



	usb_serial_debug_data(debug, &port->dev, __func__,

						urb->actual_length, data);

	tty = port->port.tty;



	if (urb->actual_length) {
@@ -371,7 +377,9 @@ static void empeg_read_bulk_callback (struct urb *urb) 
	result = usb_submit_urb(port->read_urb, GFP_ATOMIC);



	if (result)

		dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __func__, result);

		dev_err(&urb->dev->dev,

			"%s - failed resubmitting read urb, error %d\n",

							__func__, result);



	return;
@@ -395,7 +403,9 @@ static void empeg_unthrottle(struct tty_struct *tty) 
	port->read_urb->dev = port->serial->dev;

	result = usb_submit_urb(port->read_urb, GFP_ATOMIC);

	if (result)

		dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __func__, result);

		dev_err(&port->dev,

			"%s - failed submitting read urb, error %d\n",

							__func__, result);

}
@@ -493,7 +503,8 @@ static int __init empeg_init (void) 
			continue;

		}



		urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);

		urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,

								GFP_KERNEL);

		if (!urb->transfer_buffer) {

			err("%s - out of memory for urb buffers.",

			    __func__);
@@ -536,15 +547,15 @@ static void __exit empeg_exit (void) 


	for (i = 0; i < NUM_URBS; ++i) {

		if (write_urb_pool[i]) {

			/* FIXME - uncomment the following usb_kill_urb call when

			 * the host controllers get fixed to set urb->dev = NULL after

			 * the urb is finished.  Otherwise this call oopses. */

			/* FIXME - uncomment the following usb_kill_urb call

			 * when the host controllers get fixed to set urb->dev

			 * = NULL after the urb is finished.  Otherwise this

			 * call oopses. */

			/* usb_kill_urb(write_urb_pool[i]); */

			kfree(write_urb_pool[i]->transfer_buffer);

			usb_free_urb(write_urb_pool[i]);

		}

	}



	spin_unlock_irqrestore(&write_urb_pool_lock, flags);

}