From: Chen Ridong <chenridong@xxxxxxxxxx>
The tegra_cmac_init or tegra_sha_init function may return an error when
memory is exhausted. It should not transfer the request when they return
an error.
Fixes: 0880bb3b00c8 ("crypto: tegra - Add Tegra Security Engine driver")
Signed-off-by: Chen Ridong <chenridong@xxxxxxxxxx>
Acked-by: Akhil R <akhilrajeev@xxxxxxxxxx>
---
drivers/crypto/tegra/tegra-se-aes.c | 7 +++++--
drivers/crypto/tegra/tegra-se-hash.c | 7 +++++--
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/tegra/tegra-se-aes.c b/drivers/crypto/tegra/tegra-se-aes.c
index 9d130592cc0a..d734c9a56786 100644
--- a/drivers/crypto/tegra/tegra-se-aes.c
+++ b/drivers/crypto/tegra/tegra-se-aes.c
@@ -1750,10 +1750,13 @@ static int tegra_cmac_digest(struct ahash_request *req)
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct tegra_cmac_ctx *ctx = crypto_ahash_ctx(tfm);
struct tegra_cmac_reqctx *rctx = ahash_request_ctx(req);
+ int ret;
- tegra_cmac_init(req);
- rctx->task |= SHA_UPDATE | SHA_FINAL;
+ ret = tegra_cmac_init(req);
+ if (ret)
+ return ret;
+ rctx->task |= SHA_UPDATE | SHA_FINAL;
return crypto_transfer_hash_request_to_engine(ctx->se->engine, req);
}
diff --git a/drivers/crypto/tegra/tegra-se-hash.c b/drivers/crypto/tegra/tegra-se-hash.c
index 4d4bd727f498..0b5cdd5676b1 100644
--- a/drivers/crypto/tegra/tegra-se-hash.c
+++ b/drivers/crypto/tegra/tegra-se-hash.c
@@ -615,13 +615,16 @@ static int tegra_sha_digest(struct ahash_request *req)
struct tegra_sha_reqctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct tegra_sha_ctx *ctx = crypto_ahash_ctx(tfm);
+ int ret;
if (ctx->fallback)
return tegra_sha_fallback_digest(req);
- tegra_sha_init(req);
- rctx->task |= SHA_UPDATE | SHA_FINAL;
+ ret = tegra_sha_init(req);
+ if (ret)
+ return ret;
+ rctx->task |= SHA_UPDATE | SHA_FINAL;
return crypto_transfer_hash_request_to_engine(ctx->se->engine, req);
}
--
2.34.1
