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 --- v2:Fix up subject line as s/hwrng: optee -:/hwrng: optee:/ --- drivers/char/hw_random/optee-rng.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

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);