From: Tian Tao <tiantao6@hisilicon.com>
Date: Wed, 3 Feb 2021 12:26:06 +0000 (+0800)
Subject: hwrng: optee - Use device-managed registration API
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=14ab6de485dddbb414057417831b2491fe2a8729;p=linux.git

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>
---

diff --git a/drivers/char/hw_random/optee-rng.c b/drivers/char/hw_random/optee-rng.c
index a99d829499818..135a82590923d 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 @@ out_ctx:
 
 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);