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path: root/drivers/isdn/mISDN/timerdev.c
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Diffstat (limited to 'drivers/isdn/mISDN/timerdev.c')
-rw-r--r--drivers/isdn/mISDN/timerdev.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c
index b5fabc7019d..875fabe16e3 100644
--- a/drivers/isdn/mISDN/timerdev.c
+++ b/drivers/isdn/mISDN/timerdev.c
@@ -61,7 +61,7 @@ mISDN_open(struct inode *ino, struct file *filep)
init_waitqueue_head(&dev->wait);
filep->private_data = dev;
__module_get(THIS_MODULE);
- return 0;
+ return nonseekable_open(ino, filep);
}
static int
@@ -124,18 +124,6 @@ mISDN_read(struct file *filep, char *buf, size_t count, loff_t *off)
return ret;
}
-static loff_t
-mISDN_llseek(struct file *filep, loff_t offset, int orig)
-{
- return -ESPIPE;
-}
-
-static ssize_t
-mISDN_write(struct file *filep, const char *buf, size_t count, loff_t *off)
-{
- return -EOPNOTSUPP;
-}
-
static unsigned int
mISDN_poll(struct file *filep, poll_table *wait)
{
@@ -157,8 +145,9 @@ mISDN_poll(struct file *filep, poll_table *wait)
}
static void
-dev_expire_timer(struct mISDNtimer *timer)
+dev_expire_timer(unsigned long data)
{
+ struct mISDNtimer *timer = (void *)data;
u_long flags;
spin_lock_irqsave(&timer->dev->lock, flags);
@@ -191,7 +180,7 @@ misdn_add_timer(struct mISDNtimerdev *dev, int timeout)
spin_unlock_irqrestore(&dev->lock, flags);
timer->dev = dev;
timer->tl.data = (long)timer;
- timer->tl.function = (void *) dev_expire_timer;
+ timer->tl.function = dev_expire_timer;
init_timer(&timer->tl);
timer->tl.expires = jiffies + ((HZ * (u_long)timeout) / 1000);
add_timer(&timer->tl);
@@ -211,6 +200,9 @@ misdn_del_timer(struct mISDNtimerdev *dev, int id)
list_for_each_entry(timer, &dev->pending, list) {
if (timer->id == id) {
list_del_init(&timer->list);
+ /* RED-PEN AK: race -- timer can be still running on
+ * other CPU. Needs reference count I think
+ */
del_timer(&timer->tl);
ret = timer->id;
kfree(timer);
@@ -268,9 +260,7 @@ mISDN_ioctl(struct inode *inode, struct file *filep, unsigned int cmd,
}
static struct file_operations mISDN_fops = {
- .llseek = mISDN_llseek,
.read = mISDN_read,
- .write = mISDN_write,
.poll = mISDN_poll,
.ioctl = mISDN_ioctl,
.open = mISDN_open,