[PATCH] crypto: rockchip - Fix dma_unmap_sg() nents value
From: Thomas Fourier <hidden>
Date: 2025-09-03 08:07:16
Also in:
linux-crypto, linux-rockchip, lkml, stable
Subsystem:
arm/rockchip soc support, crypto api, rockchip crypto drivers, the rest · Maintainers:
Heiko Stuebner, Herbert Xu, "David S. Miller", Corentin Labbe, Linus Torvalds
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: <redacted>
Signed-off-by: Thomas Fourier <redacted>
---
drivers/crypto/rockchip/rk3288_crypto_ahash.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
index d6928ebe9526..b9f5a8b42e66 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c@@ -254,7 +254,7 @@ static void rk_hash_unprepare(struct crypto_engine *engine, void *breq) struct rk_ahash_rctx *rctx = ahash_request_ctx(areq); struct rk_crypto_info *rkc = rctx->dev; - dma_unmap_sg(rkc->dev, areq->src, rctx->nrsg, DMA_TO_DEVICE); + dma_unmap_sg(rkc->dev, areq->src, sg_nents(areq->src), DMA_TO_DEVICE); } static int rk_hash_run(struct crypto_engine *engine, void *breq)
--
2.43.0