From 0a5cb2615e042012c4985fcf909c8aefef0a3444 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Fri, 20 Oct 2023 09:55:56 +0200
Subject: [PATCH] crypto: rockchip/rk3288 - Convert to platform remove callback
 returning void
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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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

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

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/rockchip/rk3288_crypto.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 77d5705a5d960..70edf40bc523c 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -405,7 +405,7 @@ static int rk_crypto_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int rk_crypto_remove(struct platform_device *pdev)
+static void rk_crypto_remove(struct platform_device *pdev)
 {
 	struct rk_crypto_info *crypto_tmp = platform_get_drvdata(pdev);
 	struct rk_crypto_info *first;
@@ -424,12 +424,11 @@ static int rk_crypto_remove(struct platform_device *pdev)
 	}
 	rk_crypto_pm_exit(crypto_tmp);
 	crypto_engine_exit(crypto_tmp->engine);
-	return 0;
 }
 
 static struct platform_driver crypto_driver = {
 	.probe		= rk_crypto_probe,
-	.remove		= rk_crypto_remove,
+	.remove_new	= rk_crypto_remove,
 	.driver		= {
 		.name	= "rk3288-crypto",
 		.pm		= &rk_crypto_pm_ops,
-- 
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