| From 1fe2db9d269f860b5fdcd728299d5c806fbdd063 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Wed, 5 May 2021 20:26:08 +0000 |
| Subject: crypto: ixp4xx - dma_unmap the correct address |
| |
| From: Corentin Labbe <clabbe@baylibre.com> |
| |
| [ Upstream commit 9395c58fdddd79cdd3882132cdd04e8ac7ad525f ] |
| |
| 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 <clabbe@baylibre.com> |
| Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| 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 276012e7c482..cbb1fda299a8 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; |
| -- |
| 2.30.2 |
| |
