hwrng: ba431 - Use device-managed registration

Commit Message

Tian Tao Feb. 9, 2021, 1:35 a.m. UTC

Use device-managed registration, so we can delete the ba431_trng_remove.

Signed-off-by: Tian Tao <[e-mail]>
---
 drivers/char/hw_random/ba431-rng.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

Comments

Herbert Xu March 4, 2021, 6:35 a.m. UTC | #1

On Tue, Feb 09, 2021 at 09:35:34AM +0800, Tian Tao wrote:
> Use device-managed registration, so we can delete the ba431_trng_remove.
> 
> Signed-off-by: Tian Tao <[e-mail]>
> ---
>  drivers/char/hw_random/ba431-rng.c | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)

Patch applied.  Thanks.

Patch

diff --git a/drivers/char/hw_random/ba431-rng.c b/drivers/char/hw_random/ba431-rng.c
index 410b50b..4f514e2 100644
--- a/drivers/char/hw_random/ba431-rng.c
+++ b/drivers/char/hw_random/ba431-rng.c
@@ -193,7 +193,7 @@  static int ba431_trng_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, ba431);
 
-	ret = hwrng_register(&ba431->rng);
+	ret = devm_hwrng_register(&pdev->dev, &ba431->rng);
 	if (ret) {
 		dev_err(&pdev->dev, "BA431 registration failed (%d)\n", ret);
 		return ret;
@@ -204,15 +204,6 @@  static int ba431_trng_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int ba431_trng_remove(struct platform_device *pdev)
-{
-	struct ba431_trng *ba431 = platform_get_drvdata(pdev);
-
-	hwrng_unregister(&ba431->rng);
-
-	return 0;
-}
-
 static const struct of_device_id ba431_trng_dt_ids[] = {
 	{ .compatible = "silex-insight,ba431-rng", .data = NULL },
 	{ /* sentinel */ }
@@ -225,7 +216,6 @@  static struct platform_driver ba431_trng_driver = {
 		.of_match_table = ba431_trng_dt_ids,
 	},
 	.probe = ba431_trng_probe,
-	.remove = ba431_trng_remove,
 };
 
 module_platform_driver(ba431_trng_driver);