[PATCH 14/17] habanalabs: check fence pointer before use

Oded Gabbay
2022-06-20T13:15:04Z

fence pointer can be NULL in this path, as shown by an earlier check.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
drivers/misc/habanalabs/common/command_submission.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/common/command_submission.c b/drivers/misc/habanalabs/common/command_submission.c
index c050f38b7091..e5549a9da42e 100644
--- a/drivers/misc/habanalabs/common/command_submission.c
+++ b/drivers/misc/habanalabs/common/command_submission.c
@@ -2581,7 +2581,7 @@ static int hl_cs_poll_fences(struct multi_cs_data *mcs_data, struct multi_cs_com
* For this we have to validate that the timestamp is
* earliest of all timestamps so far.
*/
- if (mcs_data->update_ts &&
+ if (fence && mcs_data->update_ts &&
(ktime_compare(fence->timestamp, first_cs_time) < 0))
first_cs_time = fence->timestamp;
break;
--
2.25.1