linux-kernel - [PATCH 05/27] thermal/drivers/imx8mm_thermal: Convert to platform remove callback returning void

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230712081258.29254-5-frank.li@vivo.com>
Date:   Wed, 12 Jul 2023 16:12:36 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Cc:     Yangtao Li <frank.li@...o.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, linux-pm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 05/27] thermal/drivers/imx8mm_thermal: Convert to platform remove callback returning void

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@...gutronix.de>
Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 drivers/thermal/imx8mm_thermal.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/imx8mm_thermal.c b/drivers/thermal/imx8mm_thermal.c
index d4b40869c7d7..b95564ad6319 100644
--- a/drivers/thermal/imx8mm_thermal.c
+++ b/drivers/thermal/imx8mm_thermal.c
@@ -366,7 +366,7 @@ static int imx8mm_tmu_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int imx8mm_tmu_remove(struct platform_device *pdev)
+static void imx8mm_tmu_remove(struct platform_device *pdev)
 {
 	struct imx8mm_tmu *tmu = platform_get_drvdata(pdev);
 
@@ -375,8 +375,6 @@ static int imx8mm_tmu_remove(struct platform_device *pdev)
 
 	clk_disable_unprepare(tmu->clk);
 	platform_set_drvdata(pdev, NULL);
-
-	return 0;
 }
 
 static struct thermal_soc_data imx8mm_tmu_data = {
@@ -404,7 +402,7 @@ static struct platform_driver imx8mm_tmu = {
 		.of_match_table = imx8mm_tmu_table,
 	},
 	.probe = imx8mm_tmu_probe,
-	.remove = imx8mm_tmu_remove,
+	.remove_new = imx8mm_tmu_remove,
 };
 module_platform_driver(imx8mm_tmu);
 
-- 
2.39.0