To check rq pointer before adding entity into it. That avoids NULL pointer access in some case.
Suggested-by: Christian König <[email protected]> Signed-off-by: Junwei Zhang <[email protected]> --- drivers/gpu/drm/scheduler/gpu_scheduler.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/scheduler/gpu_scheduler.c b/drivers/gpu/drm/scheduler/gpu_scheduler.c index 16bf446..5e5268d 100644 --- a/drivers/gpu/drm/scheduler/gpu_scheduler.c +++ b/drivers/gpu/drm/scheduler/gpu_scheduler.c @@ -91,6 +91,10 @@ static void drm_sched_rq_add_entity(struct drm_sched_rq *rq, { if (!list_empty(&entity->list)) return; + if (!rq) { + DRM_ERROR("rq is NULL!\n"); + return; + } spin_lock(&rq->lock); list_add_tail(&entity->list, &rq->entities); spin_unlock(&rq->lock); -- 1.9.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
