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crypto: hisilicon/hpre - remove dma_free_coherent on NULL req->dst in ECDH

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In hpre_ecdh_hw_data_clr_all(), req->dst is always NULL because
hpre_ecdh_dst_data_init() sets hpre_req->dst = NULL before mapping
the user buffer with dma_map_single(). The dma_free_coherent() call
on req->dst is therefore dead code. Remove it.

Fixes: 05e7b906aa ("crypto: hisilicon/hpre - add 'ECDH' algorithm")
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Weili Qian 2026-09-18 20:27:21 +08:00 committed by Herbert Xu
parent 9770bb7d33
commit 5b87f619cc
1 changed files with 0 additions and 2 deletions
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2
drivers/crypto/hisilicon/hpre/hpre_crypto.c
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@ -1407,8 +1407,6 @@ static void hpre_ecdh_hw_data_clr_all(struct hpre_ctx *ctx,
if (unlikely(dma_mapping_error(dev, dma)))
return;
if (req->dst)
dma_free_coherent(dev, ctx->key_sz << 1, req->dst, dma);
if (dst)
dma_unmap_single(dev, dma, ctx->key_sz << 1, DMA_FROM_DEVICE);
}