}
void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring);
-int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n);
-void intel_ring_begin(struct intel_ring_buffer *ring, int n);
+int __must_check intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n);
+int __must_check intel_ring_begin(struct intel_ring_buffer *ring, int n);
static inline void intel_ring_emit(struct intel_ring_buffer *ring,
u32 data)