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    Subject[PATCH AUTOSEL for 4.15 021/102] crypto: chelsio - Fix an error code in chcr_hash_dma_map()
    Date
    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>
    ---
    drivers/crypto/chelsio/chcr_algo.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
    index 4eed7171e2ae..38fe59b5c689 100644
    --- 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(struct device *dev,
    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;
    }
    --
    2.14.1
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