5.10-stable review patch. If anyone has any objections, please let me know.
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From: Thomas Fourier fourier.thomas@gmail.com
[ Upstream commit 21140e5caf019e4a24e1ceabcaaa16bd693b393f ]
The dma_unmap_sg() functions should be called with the same nents as the dma_map_sg(), not the value the map function returned.
Fixes: 57d67c6e8219 ("crypto: rockchip - rework by using crypto_engine") Cc: stable@vger.kernel.org Signed-off-by: Thomas Fourier fourier.thomas@gmail.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au [ removed unused rctx variable declaration since device pointer already came from tctx->dev->dev instead of rctx->dev ] Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/crypto/rockchip/rk3288_crypto_ahash.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c +++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c @@ -236,10 +236,9 @@ static int rk_hash_unprepare(struct cryp { struct ahash_request *areq = container_of(breq, struct ahash_request, base); struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); - struct rk_ahash_rctx *rctx = ahash_request_ctx(areq); struct rk_ahash_ctx *tctx = crypto_ahash_ctx(tfm);
- dma_unmap_sg(tctx->dev->dev, areq->src, rctx->nrsg, DMA_TO_DEVICE); + dma_unmap_sg(tctx->dev->dev, areq->src, sg_nents(areq->src), DMA_TO_DEVICE); return 0; }