#include <linux/isdnif.h>
#include "isdn_divert.h"
+
/*********************************/
/* Variables for interface queue */
/*********************************/
ulong if_used = 0; /* number of interface users */
static struct divert_info *divert_info_head = NULL; /* head of queue */
static struct divert_info *divert_info_tail = NULL; /* pointer to last entry */
-static spinlock_t divert_info_lock = SPIN_LOCK_UNLOCKED;/* lock for queue */
+static DEFINE_SPINLOCK(divert_info_lock);/* lock for queue */
static wait_queue_head_t rd_queue;
/*********************************/
/* deflection device read routine */
/**********************************/
static ssize_t
-isdn_divert_read(struct file *file, char *buf, size_t count, loff_t * off)
+isdn_divert_read(struct file *file, char __user *buf, size_t count, loff_t * off)
{
struct divert_info *inf;
int len;
return (0);
inf->usage_cnt--; /* new usage count */
- (struct divert_info **) file->private_data = &inf->next; /* next structure */
+ file->private_data = &inf->next; /* next structure */
if ((len = strlen(inf->info_start)) <= count) {
if (copy_to_user(buf, inf->info_start, len))
return -EFAULT;
/* deflection device write routine */
/**********************************/
static ssize_t
-isdn_divert_write(struct file *file, const char *buf, size_t count, loff_t * off)
+isdn_divert_write(struct file *file, const char __user *buf, size_t count, loff_t * off)
{
return (-ENODEV);
} /* isdn_divert_write */
spin_lock_irqsave( &divert_info_lock, flags );
if_used++;
if (divert_info_head)
- (struct divert_info **) filep->private_data = &(divert_info_tail->next);
+ filep->private_data = &(divert_info_tail->next);
else
- (struct divert_info **) filep->private_data = &divert_info_head;
+ filep->private_data = &divert_info_head;
spin_unlock_irqrestore( &divert_info_lock, flags );
/* start_divert(); */
return nonseekable_open(ino, filep);
divert_rule *rulep;
char *cp;
- if (copy_from_user(&dioctl, (char *) arg, sizeof(dioctl)))
+ if (copy_from_user(&dioctl, (void __user *) arg, sizeof(dioctl)))
return -EFAULT;
switch (cmd) {
case IIOCMODRULE:
if (!(rulep = getruleptr(dioctl.getsetrule.ruleidx)))
return (-EINVAL);
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&divert_lock, flags);
*rulep = dioctl.getsetrule.rule; /* copy data */
- restore_flags(flags);
+ spin_unlock_irqrestore(&divert_lock, flags);
return (0); /* no copy required */
break;
default:
return (-EINVAL);
} /* switch cmd */
- return copy_to_user((char *)arg, &dioctl, sizeof(dioctl)) ? -EFAULT : 0;
+ return copy_to_user((void __user *)arg, &dioctl, sizeof(dioctl)) ? -EFAULT : 0;
} /* isdn_divert_ioctl */