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[34/42] crypto: rockchip/rk3288 - Convert to platform remove callback returning void

Message ID 20231020075521.2121571-78-u.kleine-koenig@pengutronix.de
State Accepted
Commit 0a5cb2615e042012c4985fcf909c8aefef0a3444
Headers show
Series crypto: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Oct. 20, 2023, 7:55 a.m. UTC 
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>
---
 drivers/crypto/rockchip/rk3288_crypto.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 77d5705a5d96..70edf40bc523 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,