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crypto: drbg - remove unnecessary sanity checks

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The drbg_make_shadow function contains sanity checks which are not
needed as the function is invoked at times where it is ensured that the
checked-for variables are available.

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 17:40:20 +02:00 • committed by Herbert Xu
parent e6c0244ad3
commit bc034ef557
1 changed files with 0 additions and 9 deletions
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9
crypto/drbg.c
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@ -1263,15 +1263,6 @@ static int drbg_make_shadow(struct drbg_state *drbg, struct drbg_state **shadow)
int ret = -ENOMEM; int ret = -ENOMEM;
struct drbg_state *tmp = NULL; struct drbg_state *tmp = NULL;
if (!drbg || !drbg->core || !drbg->V || !drbg->C) {
pr_devel("DRBG: attempt to generate shadow copy for "
"uninitialized DRBG state rejected\n");
return -EINVAL;
}
/* HMAC does not have a scratchpad */
if (!(drbg->core->flags & DRBG_HMAC) && NULL == drbg->scratchpad)
return -EINVAL;
tmp = kzalloc(sizeof(struct drbg_state), GFP_KERNEL); tmp = kzalloc(sizeof(struct drbg_state), GFP_KERNEL);
if (!tmp) if (!tmp)
return -ENOMEM; return -ENOMEM;