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-rw-r--r--drivers/crypto/chelsio/chcr_algo.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index 9b3c259f081d..ee508bbbb750 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -2418,8 +2418,9 @@ int chcr_aead_dma_map(struct device *dev,
else
reqctx->b0_dma = 0;
if (req->src == req->dst) {
- error = dma_map_sg(dev, req->src, sg_nents(req->src),
- DMA_BIDIRECTIONAL);
+ error = dma_map_sg(dev, req->src,
+ sg_nents_for_len(req->src, dst_size),
+ DMA_BIDIRECTIONAL);
if (!error)
goto err;
} else {