[PATCH v2 02/25] crypto: ansi_cprng - Additional _get_more_prng_bytes cleanup

[George Spelvin]

The local variable "output" is no longer required.

Signed-off-by: George Spelvin <li...@horizon.com>
---
 crypto/ansi_cprng.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index ce315bf7..143e0cfa 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -89,8 +89,6 @@ static int _get_more_prng_bytes(struct prng_context *ctx, int 
cont_test)
 {
        int i;
        unsigned char tmp[DEFAULT_BLK_SZ];
-       unsigned char *output = NULL;
-
 
        dbgprint(KERN_CRIT "Calling _get_more_prng_bytes for context %p\n",
                ctx);
@@ -104,9 +102,8 @@ static int _get_more_prng_bytes(struct prng_context *ctx, 
int cont_test)
         * This gives us an intermediate value I
         */
        memcpy(tmp, ctx->DT, DEFAULT_BLK_SZ);
-       output = ctx->I;
        hexdump("tmp stage 0: ", tmp, DEFAULT_BLK_SZ);
-       crypto_cipher_encrypt_one(ctx->tfm, output, tmp);
+       crypto_cipher_encrypt_one(ctx->tfm, ctx->I, tmp);
 
        /*
         * Next xor I with our secret vector V
@@ -115,8 +112,7 @@ static int _get_more_prng_bytes(struct prng_context *ctx, 
int cont_test)
         */
        xor_vectors(ctx->I, ctx->V, tmp, DEFAULT_BLK_SZ);
        hexdump("tmp stage 1: ", tmp, DEFAULT_BLK_SZ);
-       output = ctx->rand_data;
-       crypto_cipher_encrypt_one(ctx->tfm, output, tmp);
+       crypto_cipher_encrypt_one(ctx->tfm, ctx->rand_data, tmp);
 
        /*
         * First check that we didn't produce the same
@@ -139,9 +135,8 @@ static int _get_more_prng_bytes(struct prng_context *ctx, 
int cont_test)
         * and encrypt that to obtain a new secret vector V
         */
        xor_vectors(ctx->rand_data, ctx->I, tmp, DEFAULT_BLK_SZ);
-       output = ctx->V;
        hexdump("tmp stage 2: ", tmp, DEFAULT_BLK_SZ);
-       crypto_cipher_encrypt_one(ctx->tfm, output, tmp);
+       crypto_cipher_encrypt_one(ctx->tfm, ctx->V, tmp);
 
        /*
         * Now update our DT value
-- 
2.1.3

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