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crypto: rsa - comply with crypto_akcipher_maxsize() 

crypto_akcipher_maxsize() asks for the output buffer size without
caring for errors. It allways assume that will be called after
a valid setkey. Comply with it and return what he wants.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
zero-colors
Tudor-Dan Ambarus 2017-05-25 10:18:13 +03:00 committed by Herbert Xu
parent 561f8e2df9
commit 1c23b466e9
1 changed files with 2 additions and 2 deletions
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4
crypto/rsa.c
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@ -337,11 +337,11 @@ err:
return -ENOMEM;
}
static int rsa_max_size(struct crypto_akcipher *tfm)
static unsigned int rsa_max_size(struct crypto_akcipher *tfm)
{
struct rsa_mpi_key *pkey = akcipher_tfm_ctx(tfm);
return pkey->n ? mpi_get_size(pkey->n) : -EINVAL;
return mpi_get_size(pkey->n);
}
static void rsa_exit_tfm(struct crypto_akcipher *tfm)