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.
crypto_akcipher_maxsize() now returns an unsigned int.
Remove the unnecessary check.
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
---
crypto/rsa-pkcs1pad.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index 8baab43..044bcfa 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -120,9 +120,6 @@ static int pkcs1pad_set_pub_key(struct crypto_akcipher *tfm, const void *key,
/* Find out new modulus size from rsa implementation */
err = crypto_akcipher_maxsize(ctx->child);
- if (err < 0)
- return err;
-
if (err > PAGE_SIZE)
return -ENOTSUPP;
@@ -144,9 +141,6 @@ static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
/* Find out new modulus size from rsa implementation */
err = crypto_akcipher_maxsize(ctx->child);
- if (err < 0)
- return err;
-
if (err > PAGE_SIZE)
return -ENOTSUPP;
@@ -154,7 +148,7 @@ static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
return 0;
}
-static int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
+static unsigned int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
{
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
@@ -164,7 +158,7 @@ static int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
* decrypt/verify.
*/
- return ctx->key_size ?: -EINVAL;
+ return ctx->key_size;
}
static void pkcs1pad_sg_set_buf(struct scatterlist *sg, void *buf, size_t len,
--
2.7.4
