void scullv_cleanup(void)
{
int i;
unregister_chrdev(scullv_major, "scullv");
#ifdef SCULLV_USE_PROC
remove_proc_entry("scullvmem", 0);
#endif
for (i=0; i<scullv_devs; i++)
scullv_trim(scullv_devices+i);
kfree(scullv_devices);
}
void cleanup_module(void)
{
int i;
unregister_chrdev(scullv_major, "scullv");
#ifdef SCULLV_USE_PROC
proc_unregister(&proc_root, scullv_proc_entry.low_ino);
#endif
for (i=0; i<scullv_devs; i++)
scullv_trim(scullv_devices+i);
kfree(scullv_devices);
}
void scullv_cleanup(void)
{
int i;
#ifdef SCULLV_USE_PROC
remove_proc_entry("scullvmem", NULL);
#endif
for (i = 0; i < scullv_devs; i++) {
cdev_del(&scullv_devices[i].cdev);
scullv_trim(scullv_devices + i);
}
kfree(scullv_devices);
unregister_chrdev_region(MKDEV (scullv_major, 0), scullv_devs);
}
int scullv_open (struct inode *inode, struct file *filp)
{
int num = MINOR(inode->i_rdev);
ScullV_Dev *dev; /* device information */
/* check the device number */
if (num >= scullv_devs) return -ENODEV;
dev = &scullv_devices[num];
/* now trim to 0 the length of the device if open was write-only */
if ( (filp->f_flags & O_ACCMODE) == O_WRONLY)
scullv_trim(dev);
/* and use filp->private_data to point to the device data */
filp->private_data = dev;
MOD_INC_USE_COUNT;
return 0; /* success */
}
int scullv_open (struct inode *inode, struct file *filp)
{
struct scullv_dev *dev; /* device information */
/* Find the device */
dev = container_of(inode->i_cdev, struct scullv_dev, cdev);
/* now trim to 0 the length of the device if open was write-only */
if ( (filp->f_flags & O_ACCMODE) == O_WRONLY) {
if (down_interruptible (&dev->sem))
return -ERESTARTSYS;
scullv_trim(dev); /* ignore errors */
up (&dev->sem);
}
/* and use filp->private_data to point to the device data */
filp->private_data = dev;
return 0; /* success */
}