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cpufreq: 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: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: linux-pm@vger.kernel.org
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-3-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-03-13 19:28:45 +01:00
parent 34320745df
commit 2744a63c1a
2 changed files with 11 additions and 3 deletions
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7
drivers/cpufreq/cpufreq.c
View File

@ -2932,11 +2932,16 @@ EXPORT_SYMBOL_GPL(cpufreq_unregister_driver);
static int __init cpufreq_core_init(void)
{
struct cpufreq_governor *gov = cpufreq_default_governor();
struct device *dev_root;
if (cpufreq_disabled())
return -ENODEV;
cpufreq_global_kobject = kobject_create_and_add("cpufreq", &cpu_subsys.dev_root->kobj);
dev_root = bus_get_dev_root(&cpu_subsys);
if (dev_root) {
cpufreq_global_kobject = kobject_create_and_add("cpufreq", &dev_root->kobj);
put_device(dev_root);
}
BUG_ON(!cpufreq_global_kobject);
if (!strlen(default_governor))

7
drivers/cpufreq/intel_pstate.c
View File

@ -1473,10 +1473,13 @@ static struct kobject *intel_pstate_kobject;
static void __init intel_pstate_sysfs_expose_params(void)
{
struct device *dev_root = bus_get_dev_root(&cpu_subsys);
int rc;
intel_pstate_kobject = kobject_create_and_add("intel_pstate",
&cpu_subsys.dev_root->kobj);
if (dev_root) {
intel_pstate_kobject = kobject_create_and_add("intel_pstate", &dev_root->kobj);
put_device(dev_root);
}
if (WARN_ON(!intel_pstate_kobject))
return;