From: Andrei Botila <andrei.botila@xxxxxxx> Standardize the way input lengths equal to 0 are handled in all skcipher algorithms. All the algorithms return 0 for input lengths equal to zero. Cc: Tom Lendacky <thomas.lendacky@xxxxxxx> Cc: John Allen <john.allen@xxxxxxx> Signed-off-by: Andrei Botila <andrei.botila@xxxxxxx> --- drivers/crypto/ccp/ccp-crypto-aes-xts.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/ccp/ccp-crypto-aes-xts.c b/drivers/crypto/ccp/ccp-crypto-aes-xts.c index 6849261ca47d..6a93b54d388a 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes-xts.c +++ b/drivers/crypto/ccp/ccp-crypto-aes-xts.c @@ -113,6 +113,9 @@ static int ccp_aes_xts_crypt(struct skcipher_request *req, u32 unit_size; int ret; + if (!req->cryptlen) + return 0; + if (!ctx->u.aes.key_len) return -EINVAL; -- 2.17.1
