From: Chen Ridong <chenridong@xxxxxxxxxx>
The tegra_cmac_init function may return an error when memory is exhausted.
It should not transfer the request when tegra_cmac_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-aes.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/tegra/tegra-se-aes.c b/drivers/crypto/tegra/tegra-se-aes.c
index 9d130592cc0a..10cd19427530 100644
--- a/drivers/crypto/tegra/tegra-se-aes.c
+++ b/drivers/crypto/tegra/tegra-se-aes.c
@@ -1747,13 +1747,16 @@ static int tegra_cmac_finup(struct ahash_request *req)
static int tegra_cmac_digest(struct ahash_request *req)
{
+ int ret;
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);
- 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);
}
--
2.34.1
