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: Antoine Tenart <antoine.tenart@xxxxxxxxxxx>
Signed-off-by: Andrei Botila <andrei.botila@xxxxxxx>
---
drivers/crypto/inside-secure/safexcel_cipher.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c
index 1ac3253b7903..03d06556ea98 100644
--- a/drivers/crypto/inside-secure/safexcel_cipher.c
+++ b/drivers/crypto/inside-secure/safexcel_cipher.c
@@ -2533,6 +2533,9 @@ static int safexcel_skcipher_aes_xts_cra_init(struct crypto_tfm *tfm)
static int safexcel_encrypt_xts(struct skcipher_request *req)
{
+ if (!req->cryptlen)
+ return 0;
+
if (req->cryptlen < XTS_BLOCK_SIZE)
return -EINVAL;
return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
@@ -2541,6 +2544,9 @@ static int safexcel_encrypt_xts(struct skcipher_request *req)
static int safexcel_decrypt_xts(struct skcipher_request *req)
{
+ if (!req->cryptlen)
+ return 0;
+
if (req->cryptlen < XTS_BLOCK_SIZE)
return -EINVAL;
return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
--
2.17.1
