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| author | Tudor-Dan Ambarus <tudor.ambarus@microchip.com> | 2017-05-25 10:18:16 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-06-10 12:04:31 +0800 |
| commit | 543de102e3316983119462c2821b76648ac3e744 (patch) | |
| tree | 5a81dfedc5bfb787e90bf9b2d7ec15284aab40cf /crypto/rsa-pkcs1pad.c | |
| parent | 515c4d27d69acf0473157abeb21a2ae9f9328bac (diff) | |
| download | linux-543de102e3316983119462c2821b76648ac3e744.tar.bz2 | |
crypto: pkcs1pad - 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.
crypto_akcipher_maxsize() now returns an unsigned int.
Remove the unnecessary check.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/rsa-pkcs1pad.c')
| -rw-r--r-- | crypto/rsa-pkcs1pad.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index 8baab4307f7b..044bcfa69cba 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, |