From: Chuhong Yuan <hslester96@gmail.com>
Date: Tue, 23 Jul 2019 07:19:36 +0000 (+0800)
Subject: crypto: atmel-sha204a - Use device-managed registration API
X-Git-Tag: v5.4.17~2708^2~228
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=01970282a4ce0a049eddeb85bbe677e765111ee5;p=arm%2Flinux.git

crypto: atmel-sha204a - Use device-managed registration API

Use devm_hwrng_register to get rid of manual
unregistration.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/atmel-sha204a.c b/drivers/crypto/atmel-sha204a.c
index ea0d2068ea4f..c96c14e7dab1 100644
--- a/drivers/crypto/atmel-sha204a.c
+++ b/drivers/crypto/atmel-sha204a.c
@@ -109,7 +109,7 @@ static int atmel_sha204a_probe(struct i2c_client *client,
 	i2c_priv->hwrng.read = atmel_sha204a_rng_read;
 	i2c_priv->hwrng.quality = 1024;
 
-	ret = hwrng_register(&i2c_priv->hwrng);
+	ret = devm_hwrng_register(&client->dev, &i2c_priv->hwrng);
 	if (ret)
 		dev_warn(&client->dev, "failed to register RNG (%d)\n", ret);
 
@@ -127,7 +127,6 @@ static int atmel_sha204a_remove(struct i2c_client *client)
 
 	if (i2c_priv->hwrng.priv)
 		kfree((void *)i2c_priv->hwrng.priv);
-	hwrng_unregister(&i2c_priv->hwrng);
 
 	return 0;
 }