Commit ade18fb4 authored Mar 16, 2021 by Xiang Chen Committed by Herbert Xu Mar 26, 2021

crypto: ux500 - Fix the parameter of dma_unmap_sg()



For function dma_unmap_sg(), the <nents> parameter should be number of
elements in the scatterlist prior to the mapping, not after the mapping.
So fix this usage.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent c114ecd3

drivers/crypto/ux500/cryp/cryp_core.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -608,12 +608,12 @@ static void cryp_dma_done(struct cryp_ctx *ctx)
		chan = ctx->device->dma.chan_mem2cryp;
		dmaengine_terminate_all(chan);
		dma_unmap_sg(chan->device->dev, ctx->device->dma.sg_src,
		ctx->device->dma.sg_src_len, DMA_TO_DEVICE);
		ctx->device->dma.nents_src, DMA_TO_DEVICE);

		chan = ctx->device->dma.chan_cryp2mem;
		dmaengine_terminate_all(chan);
		dma_unmap_sg(chan->device->dev, ctx->device->dma.sg_dst,
		ctx->device->dma.sg_dst_len, DMA_FROM_DEVICE);
		ctx->device->dma.nents_dst, DMA_FROM_DEVICE);
		}

		static int cryp_dma_write(struct cryp_ctx ctx, struct scatterlist sg,

drivers/crypto/ux500/hash/hash_core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -190,7 +190,7 @@ static void hash_dma_done(struct hash_ctx *ctx)
		chan = ctx->device->dma.chan_mem2hash;
		dmaengine_terminate_all(chan);
		dma_unmap_sg(chan->device->dev, ctx->device->dma.sg,
		ctx->device->dma.sg_len, DMA_TO_DEVICE);
		ctx->device->dma.nents, DMA_TO_DEVICE);
		}

		static int hash_dma_write(struct hash_ctx *ctx,