[PATCH v4 04/10] cpufreq: powernv: Use scope-based cleanup helper
From: Zihuan Zhang <hidden>
Date: 2025-09-03 13:18:17
Also in:
dri-devel, imx, intel-gfx, linux-acpi, linux-arm-kernel, linux-omap, linux-pm, lkml
Subsystem:
cpu frequency scaling framework, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Linus Torvalds
Replace the manual cpufreq_cpu_put() with __free(put_cpufreq_policy) annotation for policy references. This reduces the risk of reference counting mistakes and aligns the code with the latest kernel style. No functional change intended. Signed-off-by: Zihuan Zhang <redacted> --- drivers/cpufreq/powernv-cpufreq.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index 7d9a5f656de8..811fdbf398fa 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c@@ -892,15 +892,15 @@ static int powernv_cpufreq_reboot_notifier(struct notifier_block *nb, unsigned long action, void *unused) { int cpu; - struct cpufreq_policy *cpu_policy; rebooting = true; for_each_online_cpu(cpu) { - cpu_policy = cpufreq_cpu_get(cpu); + struct cpufreq_policy *cpu_policy __free(put_cpufreq_policy) = + cpufreq_cpu_get(cpu); + if (!cpu_policy) continue; powernv_cpufreq_target_index(cpu_policy, get_nominal_index()); - cpufreq_cpu_put(cpu_policy); } return NOTIFY_DONE;
@@ -913,7 +913,6 @@ static struct notifier_block powernv_cpufreq_reboot_nb = { static void powernv_cpufreq_work_fn(struct work_struct *work) { struct chip *chip = container_of(work, struct chip, throttle); - struct cpufreq_policy *policy; unsigned int cpu; cpumask_t mask;
@@ -928,14 +927,14 @@ static void powernv_cpufreq_work_fn(struct work_struct *work) chip->restore = false; for_each_cpu(cpu, &mask) { int index; + struct cpufreq_policy *policy __free(put_cpufreq_policy) = + cpufreq_cpu_get(cpu); - policy = cpufreq_cpu_get(cpu); if (!policy) continue; index = cpufreq_table_find_index_c(policy, policy->cur, false); powernv_cpufreq_target_index(policy, index); cpumask_andnot(&mask, &mask, policy->cpus); - cpufreq_cpu_put(policy); } out: cpus_read_unlock();
--
2.25.1