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[90.63.244.31]) by smtp.googlemail.com with ESMTPSA id a15sm497245wrr.53.2021.05.05.13.26.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 May 2021 13:26:25 -0700 (PDT) From: Corentin Labbe To: chohnstaedt@innominate.com, davem@davemloft.net, herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, Corentin Labbe Subject: [PATCH 01/11] crypto: ixp4xx: dma_unmap the correct address Date: Wed, 5 May 2021 20:26:08 +0000 Message-Id: <20210505202618.2663889-2-clabbe@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210505202618.2663889-1-clabbe@baylibre.com> References: <20210505202618.2663889-1-clabbe@baylibre.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Testing ixp4xx_crypto with CONFIG_DMA_API_DEBUG lead to the following error: DMA-API: platform ixp4xx_crypto.0: device driver tries to free DMA memory it has not allocated [device address=0x0000000000000000] [size=24 bytes] This is due to dma_unmap using the wrong address. Fixes: 0d44dc59b2b4 ("crypto: ixp4xx - Fix handling of chained sg buffers") Signed-off-by: Corentin Labbe --- drivers/crypto/ixp4xx_crypto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c index 0616e369522e..ed3deaa5ed2b 100644 --- a/drivers/crypto/ixp4xx_crypto.c +++ b/drivers/crypto/ixp4xx_crypto.c @@ -330,7 +330,7 @@ static void free_buf_chain(struct device *dev, struct buffer_desc *buf, buf1 = buf->next; phys1 = buf->phys_next; - dma_unmap_single(dev, buf->phys_next, buf->buf_len, buf->dir); + dma_unmap_single(dev, buf->phys_addr, buf->buf_len, buf->dir); dma_pool_free(buffer_pool, buf, phys); buf = buf1; phys = phys1;