From 9395c58fdddd79cdd3882132cdd04e8ac7ad525f Mon Sep 17 00:00:00 2001
From: Corentin Labbe <clabbe@baylibre.com>
Date: Wed, 5 May 2021 20:26:08 +0000
Subject: [PATCH] crypto: ixp4xx - dma_unmap the correct address
Git-commit: 9395c58fdddd79cdd3882132cdd04e8ac7ad525f
Patch-mainline: v5.14-rc1
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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;
--
2.26.2