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From:   Yangtao Li <frank.li@vivo.com>
To:     Jesper Nilsson <jesper.nilsson@axis.com>,
        Lars Persson <lars.persson@axis.com>,
        Ulf Hansson <ulf.hansson@linaro.org>
Cc:     Yangtao Li <frank.li@vivo.com>,
        =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= 
        <u.kleine-koenig@pengutronix.de>, linux-arm-kernel@axis.com,
        linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 44/62] mmc: usdhi60rol0: Convert to platform remove callback returning void
Date:   Thu, 27 Jul 2023 15:00:33 +0800
Message-Id: <20230727070051.17778-44-frank.li@vivo.com>
In-Reply-To: <20230727070051.17778-1-frank.li@vivo.com>
References: <20230727070051.17778-1-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>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
 drivers/mmc/host/usdhi6rol0.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c
index 2e17903658fc..6e421445d56c 100644
--- a/drivers/mmc/host/usdhi6rol0.c
+++ b/drivers/mmc/host/usdhi6rol0.c
@@ -1884,7 +1884,7 @@ static int usdhi6_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int usdhi6_remove(struct platform_device *pdev)
+static void usdhi6_remove(struct platform_device *pdev)
 {
 	struct usdhi6_host *host = platform_get_drvdata(pdev);
 
@@ -1895,13 +1895,11 @@ static int usdhi6_remove(struct platform_device *pdev)
 	usdhi6_dma_release(host);
 	clk_disable_unprepare(host->clk);
 	mmc_free_host(host->mmc);
-
-	return 0;
 }
 
 static struct platform_driver usdhi6_driver = {
 	.probe		= usdhi6_probe,
-	.remove		= usdhi6_remove,
+	.remove_new	= usdhi6_remove,
 	.driver		= {
 		.name	= "usdhi6rol0",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0