diff options
Diffstat (limited to 'drivers/char/hw_random/core.c')
| -rw-r--r-- | drivers/char/hw_random/core.c | 34 |
1 files changed, 11 insertions, 23 deletions
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c index 571ef61f8ea9..da8faf78536a 100644 --- a/drivers/char/hw_random/core.c +++ b/drivers/char/hw_random/core.c @@ -300,11 +300,14 @@ static const struct file_operations rng_chrdev_ops = { .llseek = noop_llseek, }; +static const struct attribute_group *rng_dev_groups[]; + static struct miscdevice rng_miscdev = { .minor = RNG_MISCDEV_MINOR, .name = RNG_MODULE_NAME, .nodename = "hwrng", .fops = &rng_chrdev_ops, + .groups = rng_dev_groups, }; @@ -377,37 +380,22 @@ static DEVICE_ATTR(rng_available, S_IRUGO, hwrng_attr_available_show, NULL); +static struct attribute *rng_dev_attrs[] = { + &dev_attr_rng_current.attr, + &dev_attr_rng_available.attr, + NULL +}; + +ATTRIBUTE_GROUPS(rng_dev); static void __exit unregister_miscdev(void) { - device_remove_file(rng_miscdev.this_device, &dev_attr_rng_available); - device_remove_file(rng_miscdev.this_device, &dev_attr_rng_current); misc_deregister(&rng_miscdev); } static int __init register_miscdev(void) { - int err; - - err = misc_register(&rng_miscdev); - if (err) - goto out; - err = device_create_file(rng_miscdev.this_device, - &dev_attr_rng_current); - if (err) - goto err_misc_dereg; - err = device_create_file(rng_miscdev.this_device, - &dev_attr_rng_available); - if (err) - goto err_remove_current; -out: - return err; - -err_remove_current: - device_remove_file(rng_miscdev.this_device, &dev_attr_rng_current); -err_misc_dereg: - misc_deregister(&rng_miscdev); - goto out; + return misc_register(&rng_miscdev); } static int hwrng_fillfn(void *unused) |