Does a general contractor have a duty to protect the safety of a subcontractor?

In Hard v. Hollywood Turf Club, 1952, 112 Cal.App.2d 263, 246 P.2d 716, the employees of a painting subcontractor sued the owner and general contractor for injuries received from a defective scaffold supplied by their employer. The court held that although the general contractor had general supervision of the work and knew of the high painting being done on the scaffolding, such contractor owed no duty to the employees of the subcontractor.