[PATCH v3 3/5] drm/sched: Warn if pending list is not empty

Philipp Stanner phasta at kernel.org
Thu May 22 08:27:41 UTC 2025


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 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 406572f5168e..48f07e6cfe2b 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -1469,6 +1469,9 @@ 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, "Tearing down scheduler while jobs are pending!\n");
 }
 EXPORT_SYMBOL(drm_sched_fini);
 
-- 
2.49.0



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