[PATCH] cpufreq: Clear real_cpus mask from remove_cpu_dev_symlink()

From: Viresh Kumar
Date: Wed May 11 2022 - 05:06:49 EST


add_cpu_dev_symlink() is responsible for setting the CPUs in the
real_cpus mask, the reverse of which should be done from
remove_cpu_dev_symlink() to make it look clean and avoid any breakage
later on.

Move the call to clear the mask to remove_cpu_dev_symlink().

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/cpufreq/cpufreq.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index fbaa8e6c7d23..c8bf6c68597c 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1020,11 +1020,12 @@ static void add_cpu_dev_symlink(struct cpufreq_policy *policy, unsigned int cpu,
dev_err(dev, "cpufreq symlink creation failed\n");
}

-static void remove_cpu_dev_symlink(struct cpufreq_policy *policy,
+static void remove_cpu_dev_symlink(struct cpufreq_policy *policy, int cpu,
struct device *dev)
{
dev_dbg(dev, "%s: Removing symlink\n", __func__);
sysfs_remove_link(&dev->kobj, "cpufreq");
+ cpumask_clear_cpu(cpu, policy->real_cpus);
}

static int cpufreq_add_dev_interface(struct cpufreq_policy *policy)
@@ -1532,7 +1533,7 @@ static int cpufreq_online(unsigned int cpu)

out_destroy_policy:
for_each_cpu(j, policy->real_cpus)
- remove_cpu_dev_symlink(policy, get_cpu_device(j));
+ remove_cpu_dev_symlink(policy, j, get_cpu_device(j));

up_write(&policy->rwsem);

@@ -1657,8 +1658,7 @@ static void cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif)
if (cpu_online(cpu))
cpufreq_offline(cpu);

- cpumask_clear_cpu(cpu, policy->real_cpus);
- remove_cpu_dev_symlink(policy, dev);
+ remove_cpu_dev_symlink(policy, cpu, dev);

if (cpumask_empty(policy->real_cpus)) {
/* We did light-weight exit earlier, do full tear down now */
--
2.31.1.272.g89b43f80a514