ps3_dma_region_create
int ps3_dma_region_create(struct ps3_dma_region *r);
EXPORT_SYMBOL(ps3_dma_region_create);
result = ps3_dma_region_create(dev->d_region);
res = ps3_dma_region_create(&dev->dma_region);
result = ps3_dma_region_create(dev->d_region);
result = ps3_dma_region_create(dev->d_region);
ret = ps3_dma_region_create(dev->d_region);