linux-kernel - [PATCH] cpufreq: Replace magic number

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Message-ID: <20250519070908.930879-1-yubowen8@huawei.com>
Date: Mon, 19 May 2025 15:09:08 +0800
From: Bowen Yu <yubowen8@...wei.com>
To: <rafael@...nel.org>, <viresh.kumar@...aro.org>
CC: <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linuxarm@...wei.com>, <zhanjie9@...ilicon.com>,
	<jonathan.cameron@...wei.com>, <lihuisong@...wei.com>,
	<zhenglifeng1@...wei.com>, <yubowen8@...wei.com>, <cenxinghai@...artners.com>
Subject: [PATCH] cpufreq: Replace magic number

Setting the length of str_governor with a magic number could cause
overflow when max length increases, it is better to use the defined
macro in this case.

Signed-off-by: Bowen Yu <yubowen8@...wei.com>
---
 drivers/cpufreq/cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 0c842edd1a76..a3a376f030f0 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -809,7 +809,7 @@ static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf)
 static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
 					const char *buf, size_t count)
 {
-	char str_governor[16];
+	char str_governor[CPUFREQ_NAME_LEN];
 	int ret;
 
 	ret = sscanf(buf, "%15s", str_governor);
-- 
2.33.0