cpufreq: tegra186: Convert to platform remove callback returning void
authorYangtao Li <frank.li@vivo.com>
Wed, 12 Jul 2023 09:33:19 +0000 (17:33 +0800)
committerViresh Kumar <viresh.kumar@linaro.org>
Thu, 20 Jul 2023 10:32:13 +0000 (16:02 +0530)
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
drivers/cpufreq/tegra186-cpufreq.c

index f98f53bf1011f5fb828f49261fa96aa5bc07a54b..7b8fcfa55038bc3de512bc1f034ed57b5a486602 100644 (file)
@@ -259,11 +259,9 @@ put_bpmp:
        return err;
 }
 
-static int tegra186_cpufreq_remove(struct platform_device *pdev)
+static void tegra186_cpufreq_remove(struct platform_device *pdev)
 {
        cpufreq_unregister_driver(&tegra186_cpufreq_driver);
-
-       return 0;
 }
 
 static const struct of_device_id tegra186_cpufreq_of_match[] = {
@@ -278,7 +276,7 @@ static struct platform_driver tegra186_cpufreq_platform_driver = {
                .of_match_table = tegra186_cpufreq_of_match,
        },
        .probe = tegra186_cpufreq_probe,
-       .remove = tegra186_cpufreq_remove,
+       .remove_new = tegra186_cpufreq_remove,
 };
 module_platform_driver(tegra186_cpufreq_platform_driver);