5253 kmem_alloc/kmem_zalloc won't fail with KM_SLEEP
5254 getrbuf won't fail with KM_SLEEP

*** 2451,2464 ****
          if (obj_priv->page_list)
                  return 0;
          pgcnt_t np = btop(obj->size);
  
          obj_priv->page_list = kmem_zalloc(np * sizeof(caddr_t), KM_SLEEP);
-         if (obj_priv->page_list == NULL) {
-                 DRM_ERROR("Faled to allocate page list\n");
-                 return ENOMEM;
-         }
  
          for (i = 0, va = obj->kaddr; i < np; i++, va += PAGESIZE) {
                  obj_priv->page_list[i] = va;
          }
          return 0;
--- 2451,2460 ----