diff options
Diffstat (limited to 'drivers/cpuidle/sysfs.c')
| -rw-r--r-- | drivers/cpuidle/sysfs.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index 48948b171749..d6f5da61cb7d 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -119,11 +119,18 @@ static struct attribute_group cpuidle_attr_group = { /** * cpuidle_add_interface - add CPU global sysfs attributes - * @dev: the target device */ -int cpuidle_add_interface(struct device *dev) +int cpuidle_add_interface(void) { - return sysfs_create_group(&dev->kobj, &cpuidle_attr_group); + struct device *dev_root = bus_get_dev_root(&cpu_subsys); + int retval; + + if (!dev_root) + return -EINVAL; + + retval = sysfs_create_group(&dev_root->kobj, &cpuidle_attr_group); + put_device(dev_root); + return retval; } /** |