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authorTudor-Dan Ambarus <tudor.ambarus@microchip.com>2017-05-25 10:18:13 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-06-10 12:04:30 +0800
commit2ba66848f90d9765a31bb1f36cf2841071a6c15c (patch)
tree5cbf089a56ae35c93ba24fd9e5eef3ecd6f24959 /crypto/rsa.c
parent06961a012c9d55ca2a9e5d007643a0970693d0fc (diff)
downloadlinux-crypto-2ba66848f90d9765a31bb1f36cf2841071a6c15c.tar.gz
linux-crypto-2ba66848f90d9765a31bb1f36cf2841071a6c15c.zip
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>
Diffstat (limited to 'crypto/rsa.c')
-rw-r--r--crypto/rsa.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/crypto/rsa.c b/crypto/rsa.c
index 4c280b6a..b067f3a9 100644
--- a/crypto/rsa.c
+++ b/crypto/rsa.c
@@ -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)