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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Lokesh Vutla <lokeshvutla@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Tony Lindgren <tony@atomide.com>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.4 030/133] crypto: omap-sham - clear dma flags only after omap_sham_update_dma_stop()
Date:   Mon, 20 Sep 2021 18:41:48 +0200
Message-Id: <20210920163913.608753924@linuxfoundation.org>
In-Reply-To: <20210920163912.603434365@linuxfoundation.org>
References: <20210920163912.603434365@linuxfoundation.org>
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From: Tony Lindgren <tony@atomide.com>

[ Upstream commit fe28140b3393b0ba1eb95cc109f974a7e58b26fd ]

We should not clear FLAGS_DMA_ACTIVE before omap_sham_update_dma_stop() is
done calling dma_unmap_sg(). We already clear FLAGS_DMA_ACTIVE at the
end of omap_sham_update_dma_stop().

The early clearing of FLAGS_DMA_ACTIVE is not causing issues as we do not
need to defer anything based on FLAGS_DMA_ACTIVE currently. So this can be
applied as clean-up.

Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Tero Kristo <kristo@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/omap-sham.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 7e9a44cee425..be82186a8afb 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -1630,7 +1630,7 @@ static void omap_sham_done_task(unsigned long data)
 				goto finish;
 		}
 	} else if (test_bit(FLAGS_DMA_READY, &dd->flags)) {
-		if (test_and_clear_bit(FLAGS_DMA_ACTIVE, &dd->flags)) {
+		if (test_bit(FLAGS_DMA_ACTIVE, &dd->flags)) {
 			omap_sham_update_dma_stop(dd);
 			if (dd->err) {
 				err = dd->err;
-- 
2.30.2