linux-kernel - [PATCH 7/7] hwrng: ingenic - switch to device managed registration

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Message-Id: <20230710202733.116133-8-martin@kaiser.cx>
Date:   Mon, 10 Jul 2023 22:27:33 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     aric.pzqi@...enic.com, linux-crypto@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 7/7] hwrng: ingenic - switch to device managed registration

Call devm_hwrng_register for device managed registration of the
ingenic-trng driver. ingenic_trng_remove can then be deleted.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/char/hw_random/ingenic-trng.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/char/hw_random/ingenic-trng.c b/drivers/char/hw_random/ingenic-trng.c
index 9c54721f8399..3967a8dbe967 100644
--- a/drivers/char/hw_random/ingenic-trng.c
+++ b/drivers/char/hw_random/ingenic-trng.c
@@ -98,7 +98,7 @@ static int ingenic_trng_probe(struct platform_device *pdev)
 	trng->rng.cleanup = ingenic_trng_cleanup;
 	trng->rng.read = ingenic_trng_read;
 
-	ret = hwrng_register(&trng->rng);
+	ret = devm_hwrng_register(&pdev->dev, &trng->rng);
 	if (ret)
 		return dev_err_probe(&pdev->dev, ret, "Failed to register hwrng\n");
 
@@ -108,15 +108,6 @@ static int ingenic_trng_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int ingenic_trng_remove(struct platform_device *pdev)
-{
-	struct ingenic_trng *trng = platform_get_drvdata(pdev);
-
-	hwrng_unregister(&trng->rng);
-
-	return 0;
-}
-
 static const struct of_device_id ingenic_trng_of_match[] = {
 	{ .compatible = "ingenic,x1830-dtrng" },
 	{ /* sentinel */ }
@@ -125,7 +116,6 @@ MODULE_DEVICE_TABLE(of, ingenic_trng_of_match);
 
 static struct platform_driver ingenic_trng_driver = {
 	.probe		= ingenic_trng_probe,
-	.remove		= ingenic_trng_remove,
 	.driver		= {
 		.name	= "ingenic-trng",
 		.of_match_table = ingenic_trng_of_match,
-- 
2.30.2