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From:   Yangtao Li <frank.li@vivo.com>
To:     "Rafael J. Wysocki" <rafael@kernel.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Amit Kucheria <amitk@kernel.org>,
        Zhang Rui <rui.zhang@intel.com>
Cc:     Yangtao Li <frank.li@vivo.com>,
        =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= 
        <u.kleine-koenig@pengutronix.de>, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 08/27] thermal/drivers/hisi: Convert to platform remove callback returning void
Date:   Wed, 12 Jul 2023 16:12:39 +0800
Message-Id: <20230712081258.29254-8-frank.li@vivo.com>
In-Reply-To: <20230712081258.29254-1-frank.li@vivo.com>
References: <20230712081258.29254-1-frank.li@vivo.com>
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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>
---
 drivers/thermal/hisi_thermal.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 3f09ef8be41a..855ccd6b8b13 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -597,7 +597,7 @@ static int hisi_thermal_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int hisi_thermal_remove(struct platform_device *pdev)
+static void hisi_thermal_remove(struct platform_device *pdev)
 {
 	struct hisi_thermal_data *data = platform_get_drvdata(pdev);
 	int i;
@@ -608,8 +608,6 @@ static int hisi_thermal_remove(struct platform_device *pdev)
 		hisi_thermal_toggle_sensor(sensor, false);
 		data->ops->disable_sensor(sensor);
 	}
-
-	return 0;
 }
 
 static int hisi_thermal_suspend(struct device *dev)
@@ -644,7 +642,7 @@ static struct platform_driver hisi_thermal_driver = {
 		.of_match_table = of_hisi_thermal_match,
 	},
 	.probe	= hisi_thermal_probe,
-	.remove	= hisi_thermal_remove,
+	.remove_new = hisi_thermal_remove,
 };
 
 module_platform_driver(hisi_thermal_driver);
-- 
2.39.0