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Diffstat (limited to 'net/atm/resources.c')
-rw-r--r--net/atm/resources.c39
1 files changed, 12 insertions, 27 deletions
diff --git a/net/atm/resources.c b/net/atm/resources.c
index ad533b02b84f..c8c459fcb038 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -70,6 +70,7 @@ struct atm_dev *atm_dev_lookup(int number)
return dev;
}
+
struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops,
int number, unsigned long *flags)
{
@@ -123,37 +124,22 @@ struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops,
void atm_dev_deregister(struct atm_dev *dev)
{
- unsigned long warning_time;
-
- atm_proc_dev_deregister(dev);
-
+ BUG_ON(test_bit(ATM_DF_REMOVED, &dev->flags));
+ set_bit(ATM_DF_REMOVED, &dev->flags);
+
+ /*
+ * if we remove current device from atm_devs list, new device
+ * with same number can appear, such we need deregister proc,
+ * release async all vccs and remove them from vccs list too
+ */
down(&atm_dev_mutex);
list_del(&dev->dev_list);
up(&atm_dev_mutex);
- warning_time = jiffies;
- while (atomic_read(&dev->refcnt) != 1) {
- msleep(250);
- if ((jiffies - warning_time) > 10 * HZ) {
- printk(KERN_EMERG "atm_dev_deregister: waiting for "
- "dev %d to become free. Usage count = %d\n",
- dev->number, atomic_read(&dev->refcnt));
- warning_time = jiffies;
- }
- }
-
- kfree(dev);
-}
+ atm_dev_release_vccs(dev);
+ atm_proc_dev_deregister(dev);
-void shutdown_atm_dev(struct atm_dev *dev)
-{
- if (atomic_read(&dev->refcnt) > 1) {
- set_bit(ATM_DF_CLOSE, &dev->flags);
- return;
- }
- if (dev->ops->dev_close)
- dev->ops->dev_close(dev);
- atm_dev_deregister(dev);
+ atm_dev_put(dev);
}
@@ -433,4 +419,3 @@ void *atm_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
EXPORT_SYMBOL(atm_dev_register);
EXPORT_SYMBOL(atm_dev_deregister);
EXPORT_SYMBOL(atm_dev_lookup);
-EXPORT_SYMBOL(shutdown_atm_dev);