Commit 1c23b466 authored by Tudor-Dan Ambarus's avatar Tudor-Dan Ambarus Committed by Herbert Xu

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: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 561f8e2d
...@@ -337,11 +337,11 @@ static int rsa_set_priv_key(struct crypto_akcipher *tfm, const void *key, ...@@ -337,11 +337,11 @@ static int rsa_set_priv_key(struct crypto_akcipher *tfm, const void *key,
return -ENOMEM; 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); 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) static void rsa_exit_tfm(struct crypto_akcipher *tfm)
......
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