diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 777f48e9bb33b..e6e0c6ef1084b 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -681,7 +681,8 @@ static bool i915_guc_dequeue(struct intel_engine_cs *engine)
 					goto done;
 				}
 
-				port_assign(port, last);
+				if (submit)
+					port_assign(port, last);
 				port++;
 			}