linux-kernel - [PATCH] cpufreq: bmips-cpufreq: Use module_init and add module

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Message-ID: <20220826021845.2283648-1-chris.zjh@huawei.com>
Date:   Fri, 26 Aug 2022 10:18:45 +0800
From:   Zhang Jianhua <chris.zjh@...wei.com>
To:     <mmayer@...adcom.com>, <rafael@...nel.org>,
        <viresh.kumar@...aro.org>
CC:     <chris.zjh@...wei.com>, <linux-pm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] cpufreq: bmips-cpufreq: Use module_init and add module_exit

- Use module_init instead of device_initcall.
- Add a function for module_exit to unregister driver.

Signed-off-by: Zhang Jianhua <chris.zjh@...wei.com>
---
 drivers/cpufreq/bmips-cpufreq.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/bmips-cpufreq.c b/drivers/cpufreq/bmips-cpufreq.c
index f7c23fa468f0..21c0417c95e1 100644
--- a/drivers/cpufreq/bmips-cpufreq.c
+++ b/drivers/cpufreq/bmips-cpufreq.c
@@ -156,7 +156,7 @@ static struct cpufreq_driver bmips_cpufreq_driver = {
 	.name		= BMIPS_CPUFREQ_PREFIX,
 };
 
-static int __init bmips_cpufreq_probe(void)
+static int __init bmips_cpufreq_driver_init(void)
 {
 	struct cpufreq_compat *cc;
 	struct device_node *np;
@@ -176,7 +176,13 @@ static int __init bmips_cpufreq_probe(void)
 
 	return cpufreq_register_driver(&bmips_cpufreq_driver);
 }
-device_initcall(bmips_cpufreq_probe);
+module_init(bmips_cpufreq_driver_init);
+
+static void __exit bmips_cpufreq_driver_exit(void)
+{
+	cpufreq_unregister_driver(&bmips_cpufreq_driver);
+}
+module_exit(bmips_cpufreq_driver_exit)
 
 MODULE_AUTHOR("Markus Mayer <mmayer@...adcom.com>");
 MODULE_DESCRIPTION("CPUfreq driver for Broadcom BMIPS SoCs");
-- 
2.31.0