#include <linux/mtio.h>
#include <linux/pg.h>
#include <linux/device.h>
+#include <linux/sched.h> /* current, TASK_* */
+#include <linux/jiffies.h>
#include <asm/uaccess.h>
static char pg_scratch[512]; /* scratch block buffer */
-static struct class_simple *pg_class;
+static struct class *pg_class;
/* kernel glue structures */
static void pg_sleep(int cs)
{
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(cs);
+ schedule_timeout_interruptible(cs);
}
static int pg_wait(struct pg *dev, int go, int stop, unsigned long tmo, char *msg)
static int __init pg_init(void)
{
- int unit, err = 0;
+ int unit;
+ int err;
if (disable){
err = -1;
goto out;
}
- if (register_chrdev(major, name, &pg_fops)) {
+ err = register_chrdev(major, name, &pg_fops);
+ if (err < 0) {
printk("pg_init: unable to get major number %d\n", major);
for (unit = 0; unit < PG_UNITS; unit++) {
struct pg *dev = &devices[unit];
if (dev->present)
pi_release(dev->pi);
}
- err = -1;
goto out;
}
- pg_class = class_simple_create(THIS_MODULE, "pg");
+ major = err; /* In case the user specified `major=0' (dynamic) */
+ pg_class = class_create(THIS_MODULE, "pg");
if (IS_ERR(pg_class)) {
err = PTR_ERR(pg_class);
goto out_chrdev;
for (unit = 0; unit < PG_UNITS; unit++) {
struct pg *dev = &devices[unit];
if (dev->present) {
- class_simple_device_add(pg_class, MKDEV(major, unit),
+ class_device_create(pg_class, NULL, MKDEV(major, unit),
NULL, "pg%u", unit);
err = devfs_mk_cdev(MKDEV(major, unit),
S_IFCHR | S_IRUSR | S_IWUSR, "pg/%u",
goto out;
out_class:
- class_simple_device_remove(MKDEV(major, unit));
- class_simple_destroy(pg_class);
+ class_device_destroy(pg_class, MKDEV(major, unit));
+ class_destroy(pg_class);
out_chrdev:
unregister_chrdev(major, "pg");
out:
for (unit = 0; unit < PG_UNITS; unit++) {
struct pg *dev = &devices[unit];
if (dev->present) {
- class_simple_device_remove(MKDEV(major, unit));
+ class_device_destroy(pg_class, MKDEV(major, unit));
devfs_remove("pg/%u", unit);
}
}
- class_simple_destroy(pg_class);
+ class_destroy(pg_class);
devfs_remove("pg");
unregister_chrdev(major, name);