diff mbox series

[08/14] crypto: inside-secure - unify cache reset

Message ID 20190527145106.8693-9-antoine.tenart@bootlin.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series crypto: inside-secure - self-test fixes | expand

Commit Message

Antoine Tenart May 27, 2019, 2:51 p.m. UTC 
This patch unify the way the cache related data is zeroed when the cache
buffer is DMA unmapped. It should not change the driver behaviour, but
improves the code safety and readability.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
---
 drivers/crypto/inside-secure/safexcel_hash.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index 58ce480690eb..a79a73bb3969 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -183,6 +183,7 @@  static int safexcel_handle_req_result(struct safexcel_crypto_priv *priv, int rin
 		dma_unmap_single(priv->dev, sreq->cache_dma, sreq->cache_sz,
 				 DMA_TO_DEVICE);
 		sreq->cache_dma = 0;
+		sreq->cache_sz = 0;
 	}
 
 	if (sreq->finish)
@@ -344,6 +345,7 @@  static int safexcel_ahash_send_req(struct crypto_async_request *async, int ring,
 	if (req->cache_dma) {
 		dma_unmap_single(priv->dev, req->cache_dma, req->cache_sz,
 				 DMA_TO_DEVICE);
+		req->cache_dma = 0;
 		req->cache_sz = 0;
 	}