diff options
| -rw-r--r-- | drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c index cb24de9e97dc..1a300e14f350 100644 --- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c +++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c @@ -224,9 +224,15 @@ int uncore_freq_common_init(int (*read_control_freq)(struct uncore_data *data, u uncore_write = write_control_freq; uncore_read_freq = read_freq; - if (!uncore_root_kobj) - uncore_root_kobj = kobject_create_and_add("intel_uncore_frequency", - &cpu_subsys.dev_root->kobj); + if (!uncore_root_kobj) { + struct device *dev_root = bus_get_dev_root(&cpu_subsys); + + if (dev_root) { + uncore_root_kobj = kobject_create_and_add("intel_uncore_frequency", + &dev_root->kobj); + put_device(dev_root); + } + } if (uncore_root_kobj) ++uncore_instance_count; mutex_unlock(&uncore_lock); |