[PATCH 4/4] crypto: tegra - fix host1x job leak in tegra_se_host1x_submit()

[Wentao Liang]

If host1x_syncpt_wait() fails, e.g. when the job times out,
tegra_se_host1x_submit() returns without calling host1x_job_put(),
leaking the reference taken by host1x_job_alloc() together with the
syncpt reference held by the job.

Jump to the existing job_unpin label so the job is unpinned and put on
the wait failure path as well.

Fixes: 0880bb3b00c8 ("crypto: tegra - Add Tegra Security Engine driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Wentao Liang <vulab@xxxxxxxxxxx>
---
 drivers/crypto/tegra/tegra-se-main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/tegra/tegra-se-main.c b/drivers/crypto/tegra/tegra-se-main.c
index eb71113ed146..1afbe5eb90af 100644
--- a/drivers/crypto/tegra/tegra-se-main.c
+++ b/drivers/crypto/tegra/tegra-se-main.c
@@ -180,7 +180,7 @@ int tegra_se_host1x_submit(struct tegra_se *se, struct tegra_se_cmdbuf *cmdbuf,
 				 MAX_SCHEDULE_TIMEOUT, NULL);
 	if (ret) {
 		dev_err(se->dev, "host1x job timed out\n");
-		return ret;
+		goto job_unpin;
 	}
 
 	host1x_job_put(job);
-- 
2.34.1