[RFC PATCH 3/5] drm/sched: Warn if pending list is not empty

[Philipp Stanner]

drm_sched_fini() can leak jobs under certain circumstances.

Warn if that happens.

Signed-off-by: Philipp Stanner <phasta at kernel.org>
---
 drivers/gpu/drm/scheduler/sched_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 87acbcb1a821..4f8cc208a231 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -1455,6 +1455,10 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched)
 	sched->ready = false;
 	kfree(sched->sched_rq);
 	sched->sched_rq = NULL;
+
+	if (!list_empty(&sched->pending_list))
+		dev_err(sched->dev, "%s: Tearing down scheduler while jobs are pending!\n",
+			__func__);
 }
 EXPORT_SYMBOL(drm_sched_fini);
 
-- 
2.48.1