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crypto: hisilicon/trng - replace atomic_add_return() 

a set of atomic_inc_return() looks more neater

Signed-off-by: Yejune Deng <yejune.deng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Yejune Deng 2020-12-01 14:50:18 +08:00 committed by Herbert Xu
parent 8857433245
commit a320dc2ff8
1 changed files with 4 additions and 4 deletions
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8
drivers/crypto/hisilicon/trng/trng.c
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@ -267,12 +267,12 @@ static int hisi_trng_probe(struct platform_device *pdev)
}
hisi_trng_add_to_list(trng);
if (atomic_add_return(1, &trng_active_devs) == 1) {
if (atomic_inc_return(&trng_active_devs) == 1) {
ret = crypto_register_rng(&hisi_trng_alg);
if (ret) {
dev_err(&pdev->dev,
"failed to register crypto(%d)\n", ret);
atomic_sub_return(1, &trng_active_devs);
atomic_dec_return(&trng_active_devs);
goto err_remove_from_list;
}
}
@ -289,7 +289,7 @@ static int hisi_trng_probe(struct platform_device *pdev)
return ret;
err_crypto_unregister:
if (atomic_sub_return(1, &trng_active_devs) == 0)
if (atomic_dec_return(&trng_active_devs) == 0)
crypto_unregister_rng(&hisi_trng_alg);
err_remove_from_list:
@ -305,7 +305,7 @@ static int hisi_trng_remove(struct platform_device *pdev)
while (hisi_trng_del_from_list(trng))
;
if (atomic_sub_return(1, &trng_active_devs) == 0)
if (atomic_dec_return(&trng_active_devs) == 0)
crypto_unregister_rng(&hisi_trng_alg);
return 0;