crypto: caampkc - 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>
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index 57f399ca..9c508ba 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -911,12 +911,11 @@ static int caam_rsa_set_priv_key(struct crypto_akcipher *tfm, const void *key,
return -ENOMEM;
}
-static int caam_rsa_max_size(struct crypto_akcipher *tfm)
+static unsigned int caam_rsa_max_size(struct crypto_akcipher *tfm)
{
struct caam_rsa_ctx *ctx = akcipher_tfm_ctx(tfm);
- struct caam_rsa_key *key = &ctx->key;
- return (key->n) ? key->n_sz : -EINVAL;
+ return ctx->key.n_sz;
}
/* Per session pkc's driver context creation function */
