From aa52428698aeb1c1d4ebb7c3e9de3e7bdce25704 Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Mon, 27 May 2019 16:51:00 +0200 Subject: [PATCH] crypto: inside-secure - unify cache reset 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 Signed-off-by: Herbert Xu --- drivers/crypto/inside-secure/safexcel_hash.c | 2 ++ 1 file changed, 2 insertions(+) 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 @@ unmap_cache: 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; } -- 2.25.1