diff options
Diffstat (limited to 'drivers/counter/counter-chrdev.c')
| -rw-r--r-- | drivers/counter/counter-chrdev.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/counter/counter-chrdev.c b/drivers/counter/counter-chrdev.c index 967c94ae95bb..b747dc81cfc6 100644 --- a/drivers/counter/counter-chrdev.c +++ b/drivers/counter/counter-chrdev.c @@ -384,10 +384,6 @@ static int counter_chrdev_open(struct inode *inode, struct file *filp) typeof(*counter), chrdev); - /* Ensure chrdev is not opened more than 1 at a time */ - if (!atomic_add_unless(&counter->chrdev_lock, 1, 1)) - return -EBUSY; - get_device(&counter->dev); filp->private_data = counter; @@ -419,7 +415,6 @@ out_unlock: mutex_unlock(&counter->ops_exist_lock); put_device(&counter->dev); - atomic_dec(&counter->chrdev_lock); return ret; } @@ -445,7 +440,6 @@ int counter_chrdev_add(struct counter_device *const counter) mutex_init(&counter->events_lock); /* Initialize character device */ - atomic_set(&counter->chrdev_lock, 0); cdev_init(&counter->chrdev, &counter_fops); /* Allocate Counter events queue */ |