[01/11] crypto: ixp4xx: dma_unmap the correct address
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Message ID 20210505202618.2663889-2-clabbe@baylibre.com
State In Next
Commit 9395c58fdddd79cdd3882132cdd04e8ac7ad525f
Headers show
Series
  • crypto: start to fix ixp4xx
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Commit Message

Corentin Labbe May 5, 2021, 8:26 p.m. UTC
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>
---
 drivers/crypto/ixp4xx_crypto.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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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;