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platform/x86: intel-uncore-freq: move to use bus_get_dev_root()

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Direct access to the struct bus_type dev_root pointer is going away soon
so replace that with a call to bus_get_dev_root() instead, which is what
it is there for.

Cc: Mark Gross <markgross@kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-03-13 19:28:47 +01:00
parent 6644a426eb
commit c8e15075b2
1 changed files with 9 additions and 3 deletions
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12
drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
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@ -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);