From: jsg <jsg@openbsd.org>
Date: Fri, 11 Oct 2024 02:50:17 +0000 (+0000)
Subject: drm/sched: Add locking to drm_sched_entity_modify_sched
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=b9c19e8727ff00303c5aa7d60c1ab0e8e29c6f2d;p=openbsd

drm/sched: Add locking to drm_sched_entity_modify_sched

From Tvrtko Ursulin
579a0a84e3c0174f296004ac4af83cd9819b38a9 in linux-6.6.y/6.6.55
4286cc2c953983d44d248c9de1c81d3a9643345c in mainline linux
---

diff --git a/sys/dev/pci/drm/scheduler/sched_entity.c b/sys/dev/pci/drm/scheduler/sched_entity.c
index 1d6409f54d5..4322a622193 100644
--- a/sys/dev/pci/drm/scheduler/sched_entity.c
+++ b/sys/dev/pci/drm/scheduler/sched_entity.c
@@ -111,8 +111,10 @@ void drm_sched_entity_modify_sched(struct drm_sched_entity *entity,
 {
 	WARN_ON(!num_sched_list || !sched_list);
 
+	spin_lock(&entity->rq_lock);
 	entity->sched_list = sched_list;
 	entity->num_sched_list = num_sched_list;
+	spin_unlock(&entity->rq_lock);
 }
 EXPORT_SYMBOL(drm_sched_entity_modify_sched);