gpu: nvgpu: Cancel timeout handler before job cleanup

Cancel timeout handler before cleaning up the list of jobs. This
prevents a race that makes timeout handler access already freed
jobs.

Bug 1814108

Change-Id: I37cfc408cb1f96b8b0e62db1ca8067a2ae43dd0e
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1221698
(cherry picked from commit be0d146cba8dc2b1bdb7c53ae39188a4bf0ca019)
Reviewed-on: http://git-master/r/1223843
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 5dac72e5..92b43c8a 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -1903,6 +1903,7 @@ static void gk20a_channel_clean_up_jobs(struct work_struct *work)
         platform = gk20a_get_platform(g->dev);
 
         gk20a_channel_cancel_job_clean_up(c, false);
+        gk20a_channel_timeout_stop(c);
 
         while (1) {
                 bool completed;