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| author | Rob Clark <robdclark@chromium.org> | 2025-05-14 19:33:32 +0300 |
|---|---|---|
| committer | Rob Clark <robin.clark@oss.qualcomm.com> | 2025-06-09 21:27:28 +0300 |
| commit | 5d319f75ccf7f0927425a7545aa1a22b3eedc189 (patch) | |
| tree | 86783df4d0bea6c073776ab50ed0e04bb52988ff | |
| parent | 8a48e35becb214743214f5504e726c3ec131cd6d (diff) | |
| download | linux-5d319f75ccf7f0927425a7545aa1a22b3eedc189.tar.xz | |
drm/msm: Fix a fence leak in submit error path
In error paths, we could unref the submit without calling
drm_sched_entity_push_job(), so msm_job_free() will never get
called. Since drm_sched_job_cleanup() will NULL out the
s_fence, we can use that to detect this case.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/653584/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 3e9aa2cc38ef..b2aeaecaa39b 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -85,6 +85,15 @@ void __msm_gem_submit_destroy(struct kref *kref) container_of(kref, struct msm_gem_submit, ref); unsigned i; + /* + * In error paths, we could unref the submit without calling + * drm_sched_entity_push_job(), so msm_job_free() will never + * get called. Since drm_sched_job_cleanup() will NULL out + * s_fence, we can use that to detect this case. + */ + if (submit->base.s_fence) + drm_sched_job_cleanup(&submit->base); + if (submit->fence_id) { spin_lock(&submit->queue->idr_lock); idr_remove(&submit->queue->fence_idr, submit->fence_id); |