diff options
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 2 | ||||
| -rw-r--r-- | drivers/cpuidle/cpuidle.h | 2 | ||||
| -rw-r--r-- | drivers/cpuidle/sysfs.c | 13 |
3 files changed, 12 insertions, 5 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 0b00f21cefe3..8e929f6602ce 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -808,7 +808,7 @@ static int __init cpuidle_init(void) if (cpuidle_disabled()) return -ENODEV; - return cpuidle_add_interface(cpu_subsys.dev_root); + return cpuidle_add_interface(); } module_param(off, int, 0444); diff --git a/drivers/cpuidle/cpuidle.h b/drivers/cpuidle/cpuidle.h index 9f336af17fa6..52701d9588f1 100644 --- a/drivers/cpuidle/cpuidle.h +++ b/drivers/cpuidle/cpuidle.h @@ -30,7 +30,7 @@ extern int cpuidle_switch_governor(struct cpuidle_governor *gov); struct device; -extern int cpuidle_add_interface(struct device *dev); +extern int cpuidle_add_interface(void); extern void cpuidle_remove_interface(struct device *dev); extern int cpuidle_add_device_sysfs(struct cpuidle_device *device); extern void cpuidle_remove_device_sysfs(struct cpuidle_device *device); 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; } /** |