6.13-stable review patch. If anyone has any objections, please let me know.
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From: Akhil R akhilrajeev@nvidia.com
[ Upstream commit 1e245948ca0c252f561792fabb45de5518301d97 ]
Call the crypto finalize function before exiting *do_one_req() functions. This allows the driver to take up further requests even if the previous one fails.
Fixes: 0880bb3b00c8 ("crypto: tegra - Add Tegra Security Engine driver") Signed-off-by: Akhil R akhilrajeev@nvidia.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/tegra/tegra-se-aes.c | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-)
diff --git a/drivers/crypto/tegra/tegra-se-aes.c b/drivers/crypto/tegra/tegra-se-aes.c index be0a0b51f5a59..a1b469c3a55ba 100644 --- a/drivers/crypto/tegra/tegra-se-aes.c +++ b/drivers/crypto/tegra/tegra-se-aes.c @@ -275,8 +275,10 @@ static int tegra_aes_do_one_req(struct crypto_engine *engine, void *areq) rctx->datbuf.size = rctx->len; rctx->datbuf.buf = dma_alloc_coherent(se->dev, rctx->datbuf.size, &rctx->datbuf.addr, GFP_KERNEL); - if (!rctx->datbuf.buf) - return -ENOMEM; + if (!rctx->datbuf.buf) { + ret = -ENOMEM; + goto out_finalize; + }
scatterwalk_map_and_copy(rctx->datbuf.buf, req->src, 0, req->cryptlen, 0);
@@ -292,6 +294,7 @@ static int tegra_aes_do_one_req(struct crypto_engine *engine, void *areq) dma_free_coherent(ctx->se->dev, rctx->datbuf.size, rctx->datbuf.buf, rctx->datbuf.addr);
+out_finalize: crypto_finalize_skcipher_request(se->engine, req, ret);
return 0; @@ -1155,21 +1158,21 @@ static int tegra_ccm_do_one_req(struct crypto_engine *engine, void *areq)
ret = tegra_ccm_crypt_init(req, se, rctx); if (ret) - return ret; + goto out_finalize;
/* Allocate buffers required */ rctx->inbuf.size = rctx->assoclen + rctx->authsize + rctx->cryptlen + 100; rctx->inbuf.buf = dma_alloc_coherent(ctx->se->dev, rctx->inbuf.size, &rctx->inbuf.addr, GFP_KERNEL); if (!rctx->inbuf.buf) - return -ENOMEM; + goto out_finalize;
rctx->outbuf.size = rctx->assoclen + rctx->authsize + rctx->cryptlen + 100; rctx->outbuf.buf = dma_alloc_coherent(ctx->se->dev, rctx->outbuf.size, &rctx->outbuf.addr, GFP_KERNEL); if (!rctx->outbuf.buf) { ret = -ENOMEM; - goto outbuf_err; + goto out_free_inbuf; }
if (rctx->encrypt) { @@ -1198,10 +1201,11 @@ static int tegra_ccm_do_one_req(struct crypto_engine *engine, void *areq) dma_free_coherent(ctx->se->dev, rctx->inbuf.size, rctx->outbuf.buf, rctx->outbuf.addr);
-outbuf_err: +out_free_inbuf: dma_free_coherent(ctx->se->dev, rctx->outbuf.size, rctx->inbuf.buf, rctx->inbuf.addr);
+out_finalize: crypto_finalize_aead_request(ctx->se->engine, req, ret);
return 0; @@ -1232,15 +1236,17 @@ static int tegra_gcm_do_one_req(struct crypto_engine *engine, void *areq) rctx->inbuf.size = rctx->assoclen + rctx->authsize + rctx->cryptlen; rctx->inbuf.buf = dma_alloc_coherent(ctx->se->dev, rctx->inbuf.size, &rctx->inbuf.addr, GFP_KERNEL); - if (!rctx->inbuf.buf) - return -ENOMEM; + if (!rctx->inbuf.buf) { + ret = -ENOMEM; + goto out_finalize; + }
rctx->outbuf.size = rctx->assoclen + rctx->authsize + rctx->cryptlen; rctx->outbuf.buf = dma_alloc_coherent(ctx->se->dev, rctx->outbuf.size, &rctx->outbuf.addr, GFP_KERNEL); if (!rctx->outbuf.buf) { ret = -ENOMEM; - goto outbuf_err; + goto out_free_inbuf; }
/* If there is associated data perform GMAC operation */ @@ -1269,11 +1275,11 @@ static int tegra_gcm_do_one_req(struct crypto_engine *engine, void *areq) dma_free_coherent(ctx->se->dev, rctx->outbuf.size, rctx->outbuf.buf, rctx->outbuf.addr);
-outbuf_err: +out_free_inbuf: dma_free_coherent(ctx->se->dev, rctx->inbuf.size, rctx->inbuf.buf, rctx->inbuf.addr);
- /* Finalize the request if there are no errors */ +out_finalize: crypto_finalize_aead_request(ctx->se->engine, req, ret);
return 0;