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authorMatthew Brost <[email protected]>2024-06-04 22:50:41 -0700
committerMatthew Brost <[email protected]>2024-06-06 09:22:20 -0700
commit5d30de4311d2d4165e78dc021c5cacb7496b3491 (patch)
treef6cfacbfb10cdd11e06c57c87e1be71b60bcdecd
parentdf433a3fac078c79dc4efab81015dec012322668 (diff)
drm/xe: Do not dereference NULL job->fence in trace points
job->fence is not assigned until xe_sched_job_arm(), check for job->fence in xe_sched_job_seqno() so any usage of this function (trace points) do not result in NULL ptr dereference. Also check job->fence before assigning error in job trace points. Fixes: 0ac7a2c745e8 ("drm/xe: Don't initialize fences at xe_sched_job_create()") Cc: Thomas Hellström <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Lucas De Marchi <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
-rw-r--r--drivers/gpu/drm/xe/xe_sched_job.h2
-rw-r--r--drivers/gpu/drm/xe/xe_trace.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/xe/xe_sched_job.h b/drivers/gpu/drm/xe/xe_sched_job.h
index 002c3b5c0a5c..f362e28455db 100644
--- a/drivers/gpu/drm/xe/xe_sched_job.h
+++ b/drivers/gpu/drm/xe/xe_sched_job.h
@@ -70,7 +70,7 @@ to_xe_sched_job(struct drm_sched_job *drm)
static inline u32 xe_sched_job_seqno(struct xe_sched_job *job)
{
- return job->fence->seqno;
+ return job->fence ? job->fence->seqno : 0;
}
static inline u32 xe_sched_job_lrc_seqno(struct xe_sched_job *job)
diff --git a/drivers/gpu/drm/xe/xe_trace.h b/drivers/gpu/drm/xe/xe_trace.h
index 450f407c66e8..e4cba64474e6 100644
--- a/drivers/gpu/drm/xe/xe_trace.h
+++ b/drivers/gpu/drm/xe/xe_trace.h
@@ -270,7 +270,7 @@ DECLARE_EVENT_CLASS(xe_sched_job,
__entry->guc_state =
atomic_read(&job->q->guc->state);
__entry->flags = job->q->flags;
- __entry->error = job->fence->error;
+ __entry->error = job->fence ? job->fence->error : 0;
__entry->fence = job->fence;
__entry->batch_addr = (u64)job->ptrs[0].batch_addr;
),