linux-kernel - [PATCH v3 03/12] cpufreq: intel_pstate: Use scope-based cleanup helper

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Message-Id: <20250901085748.36795-4-zhangzihuan@kylinos.cn>
Date: Mon,  1 Sep 2025 16:57:39 +0800
From: Zihuan Zhang <zhangzihuan@...inos.cn>
To: "Rafael J . wysocki" <rafael@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
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	Zihuan Zhang <zhangzihuan@...inos.cn>
Subject: [PATCH v3 03/12] cpufreq: intel_pstate: Use scope-based cleanup helper

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 <zhangzihuan@...inos.cn>
---
 drivers/cpufreq/intel_pstate.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index f366d35c5840..4abc1ef2d2b0 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1502,9 +1502,8 @@ static void __intel_pstate_update_max_freq(struct cpufreq_policy *policy,
 
 static bool intel_pstate_update_max_freq(struct cpudata *cpudata)
 {
-	struct cpufreq_policy *policy __free(put_cpufreq_policy);
+	struct cpufreq_policy *policy __free(put_cpufreq_policy) = cpufreq_cpu_get(cpudata->cpu);
 
-	policy = cpufreq_cpu_get(cpudata->cpu);
 	if (!policy)
 		return false;
 
@@ -1698,19 +1697,18 @@ static ssize_t store_no_turbo(struct kobject *a, struct kobj_attribute *b,
 static void update_qos_request(enum freq_qos_req_type type)
 {
 	struct freq_qos_request *req;
-	struct cpufreq_policy *policy;
 	int i;
 
 	for_each_possible_cpu(i) {
 		struct cpudata *cpu = all_cpu_data[i];
 		unsigned int freq, perf_pct;
+		struct cpufreq_policy *policy __free(put_cpufreq_policy) =
+			cpufreq_cpu_get(i);
 
-		policy = cpufreq_cpu_get(i);
 		if (!policy)
 			continue;
 
 		req = policy->driver_data;
-		cpufreq_cpu_put(policy);
 
 		if (!req)
 			continue;
-- 
2.25.1