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crypto: atmel-{aes,tdes} - Update the IV only when the op succeeds

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Do not update the IV in case of errors.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tudor Ambarus 2019-12-13 09:54:56 +00:00 committed by Herbert Xu
parent e9ce6aee1d
commit 27f4adf724
2 changed files with 2 additions and 2 deletions
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2
drivers/crypto/atmel-aes.c
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@ -546,7 +546,7 @@ static inline int atmel_aes_complete(struct atmel_aes_dev *dd, int err)
clk_disable(dd->iclk);
dd->flags &= ~AES_FLAGS_BUSY;
if (!dd->ctx->is_aead &&
if (!err && !dd->ctx->is_aead &&
(rctx->mode & AES_FLAGS_OPMODE_MASK) != AES_FLAGS_ECB) {
if ((rctx->mode & AES_FLAGS_OPMODE_MASK) != AES_FLAGS_CTR)
atmel_aes_set_iv_as_last_ciphertext_block(dd);

2
drivers/crypto/atmel-tdes.c
View file

@ -597,7 +597,7 @@ static void atmel_tdes_finish_req(struct atmel_tdes_dev *dd, int err)
dd->flags &= ~TDES_FLAGS_BUSY;
if ((rctx->mode & TDES_FLAGS_OPMODE_MASK) != TDES_FLAGS_ECB)
if (!err && (rctx->mode & TDES_FLAGS_OPMODE_MASK) != TDES_FLAGS_ECB)
atmel_tdes_set_iv_as_last_ciphertext_block(dd);
req->base.complete(&req->base, err);