[PATCH 6/6] crypto:chelsio: Fix wrong error counter increments

[Harsh Jain]

Fix error counter increment in AEAD decrypt operation when
validation of tag is done in Driver instead of H/W.

Signed-off-by: Harsh Jain <ha...@chelsio.com>
---
 drivers/crypto/chelsio/chcr_algo.c |  9 +++++----
 drivers/crypto/chelsio/chcr_core.c | 11 +++++------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/crypto/chelsio/chcr_algo.c 
b/drivers/crypto/chelsio/chcr_algo.c
index df52641..eedc331 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -218,7 +218,7 @@ static inline void chcr_dec_wrcount(struct chcr_dev *dev)
        atomic_dec(&dev->inflight);
 }
 
-static inline void chcr_handle_aead_resp(struct aead_request *req,
+static inline int chcr_handle_aead_resp(struct aead_request *req,
                                         unsigned char *input,
                                         int err)
 {
@@ -233,6 +233,8 @@ static inline void chcr_handle_aead_resp(struct 
aead_request *req,
        }
        chcr_dec_wrcount(dev);
        req->base.complete(&req->base, err);
+
+       return err;
 }
 
 static void get_aes_decrypt_key(unsigned char *dec_key,
@@ -2072,14 +2074,13 @@ int chcr_handle_resp(struct crypto_async_request *req, 
unsigned char *input,
 
        switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
        case CRYPTO_ALG_TYPE_AEAD:
-               chcr_handle_aead_resp(aead_request_cast(req), input, err);
+               err = chcr_handle_aead_resp(aead_request_cast(req), input, err);
                break;
 
        case CRYPTO_ALG_TYPE_ABLKCIPHER:
-                err = chcr_handle_cipher_resp(ablkcipher_request_cast(req),
+                chcr_handle_cipher_resp(ablkcipher_request_cast(req),
                                               input, err);
                break;
-
        case CRYPTO_ALG_TYPE_AHASH:
                chcr_handle_ahash_resp(ahash_request_cast(req), input, err);
                }
diff --git a/drivers/crypto/chelsio/chcr_core.c 
b/drivers/crypto/chelsio/chcr_core.c
index e04b3e8..239b933 100644
--- a/drivers/crypto/chelsio/chcr_core.c
+++ b/drivers/crypto/chelsio/chcr_core.c
@@ -169,12 +169,8 @@ static int cpl_fw6_pld_handler(struct chcr_dev *dev,
 
        ack_err_status =
                ntohl(*(__be32 *)((unsigned char *)&fw6_pld->data[0] + 4));
-       if (ack_err_status) {
-               if (CHK_MAC_ERR_BIT(ack_err_status) ||
-                   CHK_PAD_ERR_BIT(ack_err_status))
-                       error_status = -EBADMSG;
-               atomic_inc(&adap->chcr_stats.error);
-       }
+       if (CHK_MAC_ERR_BIT(ack_err_status) || CHK_PAD_ERR_BIT(ack_err_status))
+               error_status = -EBADMSG;
        /* call completion callback with failure status */
        if (req) {
                error_status = chcr_handle_resp(req, input, error_status);
@@ -182,6 +178,9 @@ static int cpl_fw6_pld_handler(struct chcr_dev *dev,
                pr_err("Incorrect request address from the firmware\n");
                return -EFAULT;
        }
+       if (error_status)
+               atomic_inc(&adap->chcr_stats.error);
+
        return 0;
 }
 
-- 
2.1.4