[PATCH] drm/xe/ xe_sync: Check NULL before dereferencing

[Bommu Krishnaiah]

checking null pointer before dereferencing schedule job

Signed-off-by: Bommu Krishnaiah <krishnaiah.bommu at intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com>
Cc: Tejas Upadhyay <tejas.upadhyay at intel.com>
---
 drivers/gpu/drm/xe/xe_sync.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_sync.c b/drivers/gpu/drm/xe/xe_sync.c
index 02c9577fe418..3b977061bf9f 100644
--- a/drivers/gpu/drm/xe/xe_sync.c
+++ b/drivers/gpu/drm/xe/xe_sync.c
@@ -255,6 +255,9 @@ void xe_sync_entry_signal(struct xe_sync_entry *sync, struct xe_sched_job *job,
 			dma_fence_put(fence);
 		}
 	} else if (sync->type == DRM_XE_SYNC_TYPE_USER_FENCE) {
+		if (!job)
+			drm_err(&sync->ufence->xe->drm, "No schedule job fond\n");
+
 		job->user_fence.used = true;
 		job->user_fence.addr = sync->addr;
 		job->user_fence.value = sync->timeline_value;
-- 
2.25.1