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drm/panthor: Fix a leak when a group is evicted before the tiler OOM is serviced

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A group ref is tied to the pending tiler_oom_work, so we need to release
it if the cancel was effective.

Fixes: de85488138 ("drm/panthor: Add the scheduler logical block")
Reported-by: sashiko-bot@kernel.org
Closes: https://sashiko.dev/#/patchset/20260623-panthor-signal-from-irq-v3-0-2ece396f8ee0@collabora.com?part=7
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260625-panthor-misc-fixes-v1-9-b67ed973fea6@collabora.com
This commit is contained in:
Boris Brezillon
2026-06-25 14:40:35 +02:00
committed by Liviu Dudau
parent ee671cedfd
commit 6efeb9ddb4
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/panthor/panthor_sched.c
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@@ -1057,7 +1057,8 @@ group_unbind_locked(struct panthor_group *group)
/* Tiler OOM events will be re-issued next time the group is scheduled. */
atomic_set(&group->tiler_oom, 0);
cancel_work(&group->tiler_oom_work);
if (cancel_work(&group->tiler_oom_work))
group_put(group);
for (u32 i = 0; i < group->queue_count; i++)
group->queues[i]->doorbell_id = -1;