[PATCH 8/8] crypto: inside-secure - unmap the result in the hash send error path

[Antoine Tenart]

This patch adds a label to unmap the result buffer in the hash send
function error path.

Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine 
driver")
Suggested-by: Ofer Heifetz <of...@marvell.com>
Signed-off-by: Antoine Tenart <antoine.ten...@bootlin.com>
---
 drivers/crypto/inside-secure/safexcel_hash.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/inside-secure/safexcel_hash.c 
b/drivers/crypto/inside-secure/safexcel_hash.c
index 43e94cd59c86..a4960a934eef 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -303,7 +303,7 @@ static int safexcel_ahash_send_req(struct 
crypto_async_request *async, int ring,
                                   req->state_sz);
        if (IS_ERR(rdesc)) {
                ret = PTR_ERR(rdesc);
-               goto cdesc_rollback;
+               goto unmap_result;
        }
 
        spin_unlock_bh(&priv->ring[ring].egress_lock);
@@ -315,6 +315,8 @@ static int safexcel_ahash_send_req(struct 
crypto_async_request *async, int ring,
        *results = 1;
        return 0;
 
+unmap_result:
+       dma_unmap_sg(priv->dev, areq->src, req->nents, DMA_TO_DEVICE);
 cdesc_rollback:
        for (i = 0; i < n_cdesc; i++)
                safexcel_ring_rollback_wptr(priv, &priv->ring[ring].cdr);
-- 
2.14.3