iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

staging: comedi: comedi_fops: move the module_{init, exit} functions to EOF

Browse Source 
For aesthetic reasons, move the module_{init,exit} functions to the end
of the file.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-12-19 15:41:19 -07:00 committed by Greg Kroah-Hartman
parent a5787824c0
commit 91fa0b0c96
1 changed files with 84 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

169
drivers/staging/comedi/comedi_fops.c
View File

@ -2205,91 +2205,6 @@ static void comedi_cleanup_legacy_minors(void)
comedi_free_board_minor(i);
}
static int __init comedi_init(void)
{
int i;
int retval;
pr_info("comedi: version " COMEDI_RELEASE " - http://www.comedi.org\n");
if (comedi_num_legacy_minors < 0 ||
comedi_num_legacy_minors > COMEDI_NUM_BOARD_MINORS) {
pr_err("comedi: error: invalid value for module parameter \"comedi_num_legacy_minors\". Valid values are 0 through %i.\n",
COMEDI_NUM_BOARD_MINORS);
return -EINVAL;
}
/*
* comedi is unusable if both comedi_autoconfig and
* comedi_num_legacy_minors are zero, so we might as well adjust the
* defaults in that case
*/
if (comedi_autoconfig == 0 && comedi_num_legacy_minors == 0)
comedi_num_legacy_minors = 16;
memset(comedi_file_info_table, 0,
sizeof(struct comedi_file_info *) * COMEDI_NUM_MINORS);
retval = register_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS, "comedi");
if (retval)
return -EIO;
cdev_init(&comedi_cdev, &comedi_fops);
comedi_cdev.owner = THIS_MODULE;
kobject_set_name(&comedi_cdev.kobj, "comedi");
if (cdev_add(&comedi_cdev, MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS)) {
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS);
return -EIO;
}
comedi_class = class_create(THIS_MODULE, "comedi");
if (IS_ERR(comedi_class)) {
pr_err("comedi: failed to create class\n");
cdev_del(&comedi_cdev);
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS);
return PTR_ERR(comedi_class);
}
comedi_class->dev_attrs = comedi_dev_attrs;
/* XXX requires /proc interface */
comedi_proc_init();
/* create devices files for legacy/manual use */
for (i = 0; i < comedi_num_legacy_minors; i++) {
int minor;
minor = comedi_alloc_board_minor(NULL);
if (minor < 0) {
comedi_cleanup_legacy_minors();
cdev_del(&comedi_cdev);
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS);
return minor;
}
}
return 0;
}
static void __exit comedi_cleanup(void)
{
int i;
comedi_cleanup_legacy_minors();
for (i = 0; i < COMEDI_NUM_MINORS; ++i)
BUG_ON(comedi_file_info_table[i]);
class_destroy(comedi_class);
cdev_del(&comedi_cdev);
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS);
comedi_proc_cleanup();
}
module_init(comedi_init);
module_exit(comedi_cleanup);
void comedi_error(const struct comedi_device *dev, const char *s)
{
dev_err(dev->class_dev, "%s: %s\n", dev->driver->driver_name, s);
@ -2512,6 +2427,90 @@ void comedi_free_subdevice_minor(struct comedi_subdevice *s)
kfree(info);
}
static int __init comedi_init(void)
{
int i;
int retval;
pr_info("comedi: version " COMEDI_RELEASE " - http://www.comedi.org\n");
if (comedi_num_legacy_minors < 0 ||
comedi_num_legacy_minors > COMEDI_NUM_BOARD_MINORS) {
pr_err("comedi: error: invalid value for module parameter \"comedi_num_legacy_minors\". Valid values are 0 through %i.\n",
COMEDI_NUM_BOARD_MINORS);
return -EINVAL;
}
/*
* comedi is unusable if both comedi_autoconfig and
* comedi_num_legacy_minors are zero, so we might as well adjust the
* defaults in that case
*/
if (comedi_autoconfig == 0 && comedi_num_legacy_minors == 0)
comedi_num_legacy_minors = 16;
memset(comedi_file_info_table, 0,
sizeof(struct comedi_file_info *) * COMEDI_NUM_MINORS);
retval = register_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS, "comedi");
if (retval)
return -EIO;
cdev_init(&comedi_cdev, &comedi_fops);
comedi_cdev.owner = THIS_MODULE;
kobject_set_name(&comedi_cdev.kobj, "comedi");
if (cdev_add(&comedi_cdev, MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS)) {
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS);
return -EIO;
}
comedi_class = class_create(THIS_MODULE, "comedi");
if (IS_ERR(comedi_class)) {
pr_err("comedi: failed to create class\n");
cdev_del(&comedi_cdev);
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS);
return PTR_ERR(comedi_class);
}
comedi_class->dev_attrs = comedi_dev_attrs;
/* XXX requires /proc interface */
comedi_proc_init();
/* create devices files for legacy/manual use */
for (i = 0; i < comedi_num_legacy_minors; i++) {
int minor;
minor = comedi_alloc_board_minor(NULL);
if (minor < 0) {
comedi_cleanup_legacy_minors();
cdev_del(&comedi_cdev);
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
COMEDI_NUM_MINORS);
return minor;
}
}
return 0;
}
module_init(comedi_init);
static void __exit comedi_cleanup(void)
{
int i;
comedi_cleanup_legacy_minors();
for (i = 0; i < COMEDI_NUM_MINORS; ++i)
BUG_ON(comedi_file_info_table[i]);
class_destroy(comedi_class);
cdev_del(&comedi_cdev);
unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS);
comedi_proc_cleanup();
}
module_exit(comedi_cleanup);
MODULE_AUTHOR("http://www.comedi.org");
MODULE_DESCRIPTION("Comedi core module");
MODULE_LICENSE("GPL");