[PATCH v2 05/12] hwrng: bcm2835-rng: Use device managed helpers

From: Florian Fainelli
Date: Tue Nov 07 2017 - 19:47:51 EST


Now that we have moved the RNG disabling into a hwrng::cleanup callback,
we can use the device managed registration operation and remove our
remove callback since it won't do anything necessary.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
drivers/char/hw_random/bcm2835-rng.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c
index 4d0356110b1b..67b9bd3be28d 100644
--- a/drivers/char/hw_random/bcm2835-rng.c
+++ b/drivers/char/hw_random/bcm2835-rng.c
@@ -138,7 +138,7 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
rng_setup(priv->base);

/* register driver */
- err = hwrng_register(&priv->rng);
+ err = devm_hwrng_register(dev, &priv->rng);
if (err)
dev_err(dev, "hwrng registration failed\n");
else
@@ -147,16 +147,6 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
return err;
}

-static int bcm2835_rng_remove(struct platform_device *pdev)
-{
- struct bcm2835_rng_priv *priv = platform_get_drvdata(pdev);
-
- /* unregister driver */
- hwrng_unregister(&priv->rng);
-
- return 0;
-}
-
MODULE_DEVICE_TABLE(of, bcm2835_rng_of_match);

static struct platform_driver bcm2835_rng_driver = {
@@ -165,7 +155,6 @@ static struct platform_driver bcm2835_rng_driver = {
.of_match_table = bcm2835_rng_of_match,
},
.probe = bcm2835_rng_probe,
- .remove = bcm2835_rng_remove,
};
module_platform_driver(bcm2835_rng_driver);

--
2.9.3