switch (acb->adapter_type) {
        case ACB_ADAPTER_TYPE_B: {
                acb->ioqueue_size = roundup(sizeof(struct MessageUnit_B), 32);
-               dma_coherent = dma_zalloc_coherent(&pdev->dev, acb->ioqueue_size,
+               dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
                        &dma_coherent_handle, GFP_KERNEL);
                if (!dma_coherent) {
                        pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
                break;
        case ACB_ADAPTER_TYPE_D: {
                acb->ioqueue_size = roundup(sizeof(struct MessageUnit_D), 32);
-               dma_coherent = dma_zalloc_coherent(&pdev->dev, acb->ioqueue_size,
+               dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
                        &dma_coherent_handle, GFP_KERNEL);
                if (!dma_coherent) {
                        pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
                uint32_t completeQ_size;
                completeQ_size = sizeof(struct deliver_completeQ) * ARCMSR_MAX_HBE_DONEQUEUE + 128;
                acb->ioqueue_size = roundup(completeQ_size, 32);
-               dma_coherent = dma_zalloc_coherent(&pdev->dev, acb->ioqueue_size,
+               dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
                        &dma_coherent_handle, GFP_KERNEL);
                if (!dma_coherent){
                        pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);