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crypto: crypto4xx - Call dma_unmap_page when done 

[ Upstream commit bcdda4301b ]

In crypto4xx_cipher_done, we should be unmapping the dst page, not
mapping it.

This was flagged by a sparse warning about the unused addr variable.
While we're at it, also fix a sparse warning regarding the unused
ctx variable in crypto4xx_ahash_done (by actually using it).

Fixes: 049359d655 ("crypto: amcc - Add crypt4xx driver")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Herbert Xu 2023-02-06 14:01:53 +08:00 committed by Greg Kroah-Hartman
parent 74fe2bf674
commit 62ff301aa4
1 changed files with 4 additions and 6 deletions
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10
drivers/crypto/amcc/crypto4xx_core.c
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@ -522,7 +522,6 @@ static void crypto4xx_cipher_done(struct crypto4xx_device *dev,
{
struct skcipher_request *req;
struct scatterlist *dst;
dma_addr_t addr;
req = skcipher_request_cast(pd_uinfo->async_req);
@ -531,8 +530,8 @@ static void crypto4xx_cipher_done(struct crypto4xx_device *dev,
req->cryptlen, req->dst);
} else {
dst = pd_uinfo->dest_va;
addr = dma_map_page(dev->core_dev->device, sg_page(dst),
dst->offset, dst->length, DMA_FROM_DEVICE);
dma_unmap_page(dev->core_dev->device, pd->dest, dst->length,
DMA_FROM_DEVICE);
}
if (pd_uinfo->sa_va->sa_command_0.bf.save_iv == SA_SAVE_IV) {
@ -557,10 +556,9 @@ static void crypto4xx_ahash_done(struct crypto4xx_device *dev,
struct ahash_request *ahash_req;
ahash_req = ahash_request_cast(pd_uinfo->async_req);
ctx = crypto_tfm_ctx(ahash_req->base.tfm);
ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(ahash_req));
crypto4xx_copy_digest_to_dst(ahash_req->result, pd_uinfo,
crypto_tfm_ctx(ahash_req->base.tfm));
crypto4xx_copy_digest_to_dst(ahash_req->result, pd_uinfo, ctx);
crypto4xx_ret_sg_desc(dev, pd_uinfo);
if (pd_uinfo->state & PD_ENTRY_BUSY)