I/OAT: cleanup pci issues

Reorder the pci release actions
    Letting go of the resources in the right order helps get rid of
    occasional kernel complaints.

Fix the pci_driver object name [Randy Dunlap]
    Rename the struct pci_driver data so that false section mismatch
    warnings won't be produced.

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c
index 66c5bb5..59d4344 100644
--- a/drivers/dma/ioat_dma.c
+++ b/drivers/dma/ioat_dma.c
@@ -931,7 +931,6 @@
 err_dma_pool:
 	kfree(device);
 err_kzalloc:
-	iounmap(iobase);
 	dev_err(&device->pdev->dev,
 		"ioatdma: Intel(R) I/OAT DMA Engine initialization failed\n");
 	return NULL;
@@ -949,6 +948,10 @@
 	pci_pool_destroy(device->dma_pool);
 	pci_pool_destroy(device->completion_pool);
 
+	iounmap(device->reg_base);
+	pci_release_regions(device->pdev);
+	pci_disable_device(device->pdev);
+
 	list_for_each_entry_safe(chan, _chan,
 				 &device->common.channels, device_node) {
 		ioat_chan = to_ioat_chan(chan);