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[PATCH] Char: stallion, move init/deinit
- Move code from stl_init into module init function, because calling it was the only one thing, that it did. - Move this code to the end of the driver (usual place for this) to resolve dependencies simply -- without prototypes. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jiri Slaby
Linus Torvalds
parent
ca7ed0f22f
commit
23b85a152b
@ -278,9 +278,6 @@ static struct {
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/*
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* Define the module agruments.
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*/
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MODULE_AUTHOR("Greg Ungerer");
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MODULE_DESCRIPTION("Stallion Multiport Serial Driver");
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MODULE_LICENSE("GPL");
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module_param_array(board0, charp, &stl_nargs, 0);
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MODULE_PARM_DESC(board0, "Board 0 config -> name[,ioaddr[,ioaddr2][,irq]]");
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@ -458,7 +455,6 @@ static int stl_parsebrd(struct stlconf *confp, char **argp);
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static unsigned long stl_atol(char *str);
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static int stl_init(void);
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static int stl_open(struct tty_struct *tty, struct file *filp);
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static void stl_close(struct tty_struct *tty, struct file *filp);
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static int stl_write(struct tty_struct *tty, const unsigned char *buf, int count);
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@ -708,90 +704,8 @@ static const struct file_operations stl_fsiomem = {
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.ioctl = stl_memioctl,
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};
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/*****************************************************************************/
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static struct class *stallion_class;
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/*
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* Loadable module initialization stuff.
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*/
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static int __init stallion_module_init(void)
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{
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stl_init();
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return 0;
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}
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/*****************************************************************************/
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static void __exit stallion_module_exit(void)
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{
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struct stlbrd *brdp;
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struct stlpanel *panelp;
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struct stlport *portp;
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int i, j, k;
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pr_debug("cleanup_module()\n");
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printk(KERN_INFO "Unloading %s: version %s\n", stl_drvtitle,
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stl_drvversion);
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/*
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* Free up all allocated resources used by the ports. This includes
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* memory and interrupts. As part of this process we will also do
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* a hangup on every open port - to try to flush out any processes
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* hanging onto ports.
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*/
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i = tty_unregister_driver(stl_serial);
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put_tty_driver(stl_serial);
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if (i) {
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printk("STALLION: failed to un-register tty driver, "
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"errno=%d\n", -i);
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return;
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}
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for (i = 0; i < 4; i++)
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class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
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if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
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printk("STALLION: failed to un-register serial memory device, "
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"errno=%d\n", -i);
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class_destroy(stallion_class);
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for (i = 0; (i < stl_nrbrds); i++) {
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if ((brdp = stl_brds[i]) == NULL)
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continue;
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free_irq(brdp->irq, brdp);
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for (j = 0; (j < STL_MAXPANELS); j++) {
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panelp = brdp->panels[j];
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if (panelp == NULL)
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continue;
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for (k = 0; (k < STL_PORTSPERPANEL); k++) {
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portp = panelp->ports[k];
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if (portp == NULL)
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continue;
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if (portp->tty != NULL)
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stl_hangup(portp->tty);
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kfree(portp->tx.buf);
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kfree(portp);
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}
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kfree(panelp);
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}
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release_region(brdp->ioaddr1, brdp->iosize1);
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if (brdp->iosize2 > 0)
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release_region(brdp->ioaddr2, brdp->iosize2);
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kfree(brdp);
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stl_brds[i] = NULL;
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}
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}
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module_init(stallion_module_init);
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module_exit(stallion_module_exit);
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/*****************************************************************************/
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/*
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* Check for any arguments passed in on the module load command line.
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*/
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@ -2934,55 +2848,6 @@ static const struct tty_operations stl_ops = {
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.tiocmset = stl_tiocmset,
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};
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/*****************************************************************************/
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static int __init stl_init(void)
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{
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int i;
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printk(KERN_INFO "%s: version %s\n", stl_drvtitle, stl_drvversion);
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spin_lock_init(&stallion_lock);
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spin_lock_init(&brd_lock);
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stl_initbrds();
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stl_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
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if (!stl_serial)
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return -1;
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/*
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* Set up a character driver for per board stuff. This is mainly used
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* to do stats ioctls on the ports.
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*/
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if (register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stl_fsiomem))
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printk("STALLION: failed to register serial board device\n");
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stallion_class = class_create(THIS_MODULE, "staliomem");
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for (i = 0; i < 4; i++)
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class_device_create(stallion_class, NULL,
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MKDEV(STL_SIOMEMMAJOR, i), NULL,
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"staliomem%d", i);
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stl_serial->owner = THIS_MODULE;
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stl_serial->driver_name = stl_drvname;
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stl_serial->name = "ttyE";
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stl_serial->major = STL_SERIALMAJOR;
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stl_serial->minor_start = 0;
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stl_serial->type = TTY_DRIVER_TYPE_SERIAL;
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stl_serial->subtype = SERIAL_TYPE_NORMAL;
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stl_serial->init_termios = stl_deftermios;
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stl_serial->flags = TTY_DRIVER_REAL_RAW;
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tty_set_operations(stl_serial, &stl_ops);
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if (tty_register_driver(stl_serial)) {
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put_tty_driver(stl_serial);
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printk("STALLION: failed to register serial driver\n");
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return -1;
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}
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return 0;
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}
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/*****************************************************************************/
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/* CD1400 HARDWARE FUNCTIONS */
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/*****************************************************************************/
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@ -4954,4 +4819,123 @@ static void stl_sc26198otherisr(struct stlport *portp, unsigned int iack)
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}
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}
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/*****************************************************************************/
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/*
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* Loadable module initialization stuff.
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*/
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static int __init stallion_module_init(void)
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{
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unsigned int i;
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printk(KERN_INFO "%s: version %s\n", stl_drvtitle, stl_drvversion);
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spin_lock_init(&stallion_lock);
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spin_lock_init(&brd_lock);
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stl_initbrds();
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stl_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
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if (!stl_serial)
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return -1;
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/*
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* Set up a character driver for per board stuff. This is mainly used
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* to do stats ioctls on the ports.
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*/
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if (register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stl_fsiomem))
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printk("STALLION: failed to register serial board device\n");
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stallion_class = class_create(THIS_MODULE, "staliomem");
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for (i = 0; i < 4; i++)
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class_device_create(stallion_class, NULL,
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MKDEV(STL_SIOMEMMAJOR, i), NULL,
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"staliomem%d", i);
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stl_serial->owner = THIS_MODULE;
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stl_serial->driver_name = stl_drvname;
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stl_serial->name = "ttyE";
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stl_serial->major = STL_SERIALMAJOR;
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stl_serial->minor_start = 0;
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stl_serial->type = TTY_DRIVER_TYPE_SERIAL;
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stl_serial->subtype = SERIAL_TYPE_NORMAL;
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stl_serial->init_termios = stl_deftermios;
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stl_serial->flags = TTY_DRIVER_REAL_RAW;
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tty_set_operations(stl_serial, &stl_ops);
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if (tty_register_driver(stl_serial)) {
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put_tty_driver(stl_serial);
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printk("STALLION: failed to register serial driver\n");
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return -1;
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}
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return 0;
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}
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static void __exit stallion_module_exit(void)
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{
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struct stlbrd *brdp;
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struct stlpanel *panelp;
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struct stlport *portp;
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int i, j, k;
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pr_debug("cleanup_module()\n");
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printk(KERN_INFO "Unloading %s: version %s\n", stl_drvtitle,
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stl_drvversion);
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/*
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* Free up all allocated resources used by the ports. This includes
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* memory and interrupts. As part of this process we will also do
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* a hangup on every open port - to try to flush out any processes
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* hanging onto ports.
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*/
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i = tty_unregister_driver(stl_serial);
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put_tty_driver(stl_serial);
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if (i) {
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printk("STALLION: failed to un-register tty driver, "
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"errno=%d\n", -i);
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return;
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}
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for (i = 0; i < 4; i++)
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class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
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if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
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printk("STALLION: failed to un-register serial memory device, "
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"errno=%d\n", -i);
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class_destroy(stallion_class);
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for (i = 0; (i < stl_nrbrds); i++) {
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if ((brdp = stl_brds[i]) == NULL)
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continue;
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free_irq(brdp->irq, brdp);
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for (j = 0; (j < STL_MAXPANELS); j++) {
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panelp = brdp->panels[j];
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if (panelp == NULL)
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continue;
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for (k = 0; (k < STL_PORTSPERPANEL); k++) {
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portp = panelp->ports[k];
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if (portp == NULL)
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continue;
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if (portp->tty != NULL)
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stl_hangup(portp->tty);
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kfree(portp->tx.buf);
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kfree(portp);
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}
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kfree(panelp);
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}
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release_region(brdp->ioaddr1, brdp->iosize1);
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if (brdp->iosize2 > 0)
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release_region(brdp->ioaddr2, brdp->iosize2);
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kfree(brdp);
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stl_brds[i] = NULL;
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}
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}
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module_init(stallion_module_init);
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module_exit(stallion_module_exit);
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MODULE_AUTHOR("Greg Ungerer");
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MODULE_DESCRIPTION("Stallion Multiport Serial Driver");
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MODULE_LICENSE("GPL");
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