__func__);dma_buf_put(dmabuf);returnERR_PTR(-EINVAL); }#endifbuffer = dmabuf->priv;dma_buf_put(dmabuf);if(ION_HEAP_TYPE_SYSTEM == buffer->heap->type) {#ifdefined(CONFIG_SPRD_IOMMU)mutex_lock(&buffer->lock);if(0== buffer->iomap_cnt[IOMMU_GSP]) { buffer->iova[IOMMU_GSP] =...