[CRYPTO] authenc: Use RTA_OK to check length

This patch changes setkey to use RTA_OK to check the validity of the
setkey request.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/authenc.c b/crypto/authenc.c
index 80d9d0b18c13..aa442dea5c43 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -44,7 +44,7 @@ static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
         struct crypto_authenc_key_param *param;
         int err = -EINVAL;
 
-        if (keylen < sizeof(*rta))
+        if (!RTA_OK(rta, keylen))
                 goto badkey;
         if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
                 goto badkey;