drm/amd/display: Implement bounds check for stream encoder creation in DCN301

[platform/kernel/linux-rpi.git] / drivers / cpuidle / sysfs.c

diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 48948b1..d6f5da6 100644 (file)
--- 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;
 }
 
 /**