crypto: drbg - remove unnecessary sanity checks

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>

1 files changed, 0 insertions, 9 deletions

diff --git a/crypto/drbg.c b/crypto/drbg.c
index ebe0afc4e94b..701575734420 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1263,15 +1263,6 @@ static int drbg_make_shadow(struct drbg_state *drbg, struct drbg_state **shadow)
         int ret = -ENOMEM;
         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);
         if (!tmp)
                 return -ENOMEM;