commit 14ab6de485dddbb414057417831b2491fe2a8729
author Tian Tao <tiantao6@hisilicon.com> Wed Feb 03 20:26:06 2021 +0800
committer Herbert Xu <herbert@gondor.apana.org.au> Wed Feb 10 17:55:58 2021 +1100
tree 9ead19ac90c887926126bc3819293faef4bdf3a8
parent fc754c024a343b836cfbb794afd3c7a87f625dbb

hwrng: optee - Use device-managed registration API

Use devm_hwrng_register to get rid of manual unregistration.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/char/hw_random/optee-rng.c

diff --git a/drivers/char/hw_random/optee-rng.c b/drivers/char/hw_random/optee-rng.c
index a99d829..135a825 100644
--- a/drivers/char/hw_random/optee-rng.c
+++ b/drivers/char/hw_random/optee-rng.c
@@ -243,7 +243,7 @@ static int optee_rng_probe(struct device *dev)
 	if (err)
 		goto out_sess;
 
-	err = hwrng_register(&pvt_data.optee_rng);
+	err = devm_hwrng_register(dev, &pvt_data.optee_rng);
 	if (err) {
 		dev_err(dev, "hwrng registration failed (%d)\n", err);
 		goto out_sess;
@@ -263,7 +263,6 @@ static int optee_rng_probe(struct device *dev)
 
 static int optee_rng_remove(struct device *dev)
 {
-	hwrng_unregister(&pvt_data.optee_rng);
 	tee_client_close_session(pvt_data.ctx, pvt_data.session_id);
 	tee_client_close_context(pvt_data.ctx);