From: Andrey Grodzovsky andrey.grodzovsky@amd.com
commit e582951baabba3e278c97169d0acc1e09b24a72e upstream.
To avoid any possible use after free.
Signed-off-by: Andrey Grodzovsky andrey.grodzovsky@amd.com Reviewed-by: Christian König christian.koenig@amd.com Link: https://patchwork.freedesktop.org/patch/414814/ CC: stable@vger.kernel.org Signed-off-by: Christian König christian.koenig@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/scheduler/sched_main.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -890,6 +890,9 @@ void drm_sched_fini(struct drm_gpu_sched if (sched->thread) kthread_stop(sched->thread);
+ /* Confirm no work left behind accessing device structures */ + cancel_delayed_work_sync(&sched->work_tdr); + sched->ready = false; } EXPORT_SYMBOL(drm_sched_fini);