23 	struct msm_ringbuffer *ring;  in msm_ringbuffer_new()  local
29 	ring = kzalloc(sizeof(*ring), GFP_KERNEL);  in msm_ringbuffer_new()
30 	if (!ring) {  in msm_ringbuffer_new()
35 	ring->gpu = gpu;  in msm_ringbuffer_new()
36 	ring->bo = msm_gem_new(gpu->dev, size, MSM_BO_WC);  in msm_ringbuffer_new()
37 	if (IS_ERR(ring->bo)) {  in msm_ringbuffer_new()
38 		ret = PTR_ERR(ring->bo);  in msm_ringbuffer_new()
39 		ring->bo = NULL;  in msm_ringbuffer_new()
43 	ring->start = msm_gem_vaddr_locked(ring->bo);  in msm_ringbuffer_new()
44 	ring->end   = ring->start + (size / 4);  in msm_ringbuffer_new()
45 	ring->cur   = ring->start;  in msm_ringbuffer_new()
47 	ring->size = size;  in msm_ringbuffer_new()
49 	return ring;  in msm_ringbuffer_new()
52 	if (ring)  in msm_ringbuffer_new()
53 		msm_ringbuffer_destroy(ring);  in msm_ringbuffer_new()
57 void msm_ringbuffer_destroy(struct msm_ringbuffer *ring)  in msm_ringbuffer_destroy()  argument
59 	if (ring->bo)  in msm_ringbuffer_destroy()
60 		drm_gem_object_unreference(ring->bo);  in msm_ringbuffer_destroy()
61 	kfree(ring);  in msm_ringbuffer_destroy()