[PATCH 07/12] crypto: atmel-sha204a - switch to module_i2c_driver

[Lothar Rubusch <l.rubusch@gmail.com>]

Replace custom module init/exit functions with module_i2c_driver() for
driver registration.

Update remove path to unregister the client from the shared I2C management
list before flushing pending work and cleaning up sysfs and hwrng
resources.

No functional change intended.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
---
 drivers/crypto/atmel-sha204a.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/crypto/atmel-sha204a.c b/drivers/crypto/atmel-sha204a.c
index cdfdcf2e43a7..613ed5e7b3f6 100644
--- a/drivers/crypto/atmel-sha204a.c
+++ b/drivers/crypto/atmel-sha204a.c
@@ -216,6 +216,8 @@ static void atmel_sha204a_remove(struct i2c_client *client)
 	struct atmel_i2c_client_priv *i2c_priv = i2c_get_clientdata(client);
 
 	devm_hwrng_unregister(&client->dev, &i2c_priv->hwrng);
+
+	atmel_i2c_unregister_client(i2c_priv);
 	atmel_i2c_flush_queue();
 
 	sysfs_remove_group(&client->dev.kobj, &atmel_sha204a_groups);
@@ -246,19 +248,7 @@ static struct i2c_driver atmel_sha204a_driver = {
 	.driver.of_match_table	= atmel_sha204a_dt_ids,
 };
 
-static int __init atmel_sha204a_init(void)
-{
-	return i2c_add_driver(&atmel_sha204a_driver);
-}
-
-static void __exit atmel_sha204a_exit(void)
-{
-	atmel_i2c_flush_queue();
-	i2c_del_driver(&atmel_sha204a_driver);
-}
-
-module_init(atmel_sha204a_init);
-module_exit(atmel_sha204a_exit);
+module_i2c_driver(atmel_sha204a_driver);
 
 MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
 MODULE_DESCRIPTION("Microchip / Atmel SHA204A (I2C) driver");
-- 
2.53.0