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Subject[PATCH 4.15 048/128] crypto: chelsio - Fix an error code in chcr_hash_dma_map()
Date
4.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>


[ Upstream commit 7814f552ff826fefa5e1b24083c7a06a9378e9ef ]

The dma_map_sg() function returns zero on error and positive values on
success. We want to return -ENOMEM on failure here and zero on success.

Fixes: 2f47d5804311 ("crypto: chelsio - Move DMA un/mapping to chcr from lld cxgb4 driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/crypto/chelsio/chcr_algo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -2414,7 +2414,7 @@ static inline int chcr_hash_dma_map(stru
error = dma_map_sg(dev, req->src, sg_nents(req->src),
DMA_TO_DEVICE);
if (!error)
- return error;
+ return -ENOMEM;
req_ctx->is_sg_map = 1;
return 0;
}

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