From: Chen Ridong <chenridong@xxxxxxxxxx>
The tegra_sha_init function may return an error when memory is exhausted.
It should not transfer the request when tegra_sha_init returns an error.
Fixes: 0880bb3b00c8 ("crypto: tegra - Add Tegra Security Engine driver")
Signed-off-by: Chen Ridong <chenridong@xxxxxxxxxx>
---
drivers/crypto/tegra/tegra-se-hash.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/tegra/tegra-se-hash.c b/drivers/crypto/tegra/tegra-se-hash.c
index 4d4bd727f498..7e888bf5f66a 100644
--- a/drivers/crypto/tegra/tegra-se-hash.c
+++ b/drivers/crypto/tegra/tegra-se-hash.c
@@ -612,6 +612,7 @@ static int tegra_sha_finup(struct ahash_request *req)
static int tegra_sha_digest(struct ahash_request *req)
{
+ int ret;
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);
@@ -619,9 +620,11 @@ static int tegra_sha_digest(struct ahash_request *req)
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
