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crypto: drbg - remove superflowous checks 

The crypto_init and crypto_fini functions are always implemented. Thus,
there is no need for a protecting check.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Stephan Mueller 2014-08-17 17:38:29 +02:00 committed by Herbert Xu
parent 46f64f6ef9
commit 45943a58df
1 changed files with 6 additions and 10 deletions
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16
crypto/drbg.c
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@ -1381,11 +1381,9 @@ static int drbg_generate(struct drbg_state *drbg,
shadow->seeded = false;
/* allocate cipher handle */
if (shadow->d_ops->crypto_init) {
len = shadow->d_ops->crypto_init(shadow);
if (len)
goto err;
}
len = shadow->d_ops->crypto_init(shadow);
if (len)
goto err;
if (shadow->pr || !shadow->seeded) {
pr_devel("DRBG: reseeding before generation (prediction "
@ -1467,8 +1465,7 @@ static int drbg_generate(struct drbg_state *drbg,
#endif
err:
if (shadow->d_ops->crypto_fini)
shadow->d_ops->crypto_fini(shadow);
shadow->d_ops->crypto_fini(shadow);
drbg_restore_shadow(drbg, &shadow);
return len;
}
@ -1562,11 +1559,10 @@ static int drbg_instantiate(struct drbg_state *drbg, struct drbg_string *pers,
return ret;
ret = -EFAULT;
if (drbg->d_ops->crypto_init && drbg->d_ops->crypto_init(drbg))
if (drbg->d_ops->crypto_init(drbg))
goto err;
ret = drbg_seed(drbg, pers, false);
if (drbg->d_ops->crypto_fini)
drbg->d_ops->crypto_fini(drbg);
drbg->d_ops->crypto_fini(drbg);
if (ret)
goto err;