mtip32xx: switch to vmalloc() to mitigate high order allocation failures

index 624e9d9..f55e3e5 100644
@@ -3116,7 +3116,7 @@ static int mtip_free_orphan(struct driver_data *dd)
 			dd->queue = NULL;
 		}
 	}
-	kfree(dd);
+	vfree(dd);
 	return 0;
 }
 

@@ -3495,8 +3495,7 @@ static int mtip_hw_init(struct driver_data *dd)
 
 	hba_setup(dd);
 
-	dd->port = kzalloc_node(sizeof(struct mtip_port), GFP_KERNEL,
-				dd->numa_node);
+	dd->port = vzalloc_node(sizeof(struct mtip_port), dd->numa_node);
 	if (!dd->port) {
 		dev_err(&dd->pdev->dev,
 			"Memory allocation: port structure\n");

@@ -3680,7 +3679,7 @@ out2:
 
 out1:
 	/* Free the memory allocated for the for structure. */
-	kfree(dd->port);
+	vfree(dd->port);
 
 	return rv;
 }

@@ -3724,7 +3723,7 @@ static int mtip_hw_exit(struct driver_data *dd)
 	mtip_dma_free(dd);
 
 	/* Free the memory allocated for the for structure. */
-	kfree(dd->port);
+	vfree(dd->port);
 	dd->port = NULL;
 
 	return 0;

@@ -4512,7 +4511,7 @@ static int mtip_pci_probe(struct pci_dev *pdev,
 		my_node, pcibus_to_node(pdev->bus), dev_to_node(&pdev->dev),
 		cpu_to_node(smp_processor_id()), smp_processor_id());
 
-	dd = kzalloc_node(sizeof(struct driver_data), GFP_KERNEL, my_node);
+	dd = vzalloc_node(sizeof(struct driver_data), my_node);
 	if (dd == NULL) {
 		dev_err(&pdev->dev,
 			"Unable to allocate memory for driver data\n");

@@ -4670,7 +4669,7 @@ setmask_err:
 	pcim_iounmap_regions(pdev, 1 << MTIP_ABAR);
 
 iomap_err:
-	kfree(dd);
+	vfree(dd);
 	pci_set_drvdata(pdev, NULL);
 	return rv;
 done:

@@ -4731,7 +4730,7 @@ static void mtip_pci_remove(struct pci_dev *pdev)
 	spin_unlock_irqrestore(&dev_lock, flags);
 
 	if (!dd->sr)
-		kfree(dd);
+		vfree(dd);
 	else
 		set_bit(MTIP_DDF_REMOVE_DONE_BIT, &dd->dd_flag);