I/OAT: cancel watchdog before dma remove

Channel watchdog should be canceled before the rest of dma remove stuff.

Signed-off-by: Maciej Sosnowski <[e-mail]>
Signed-off-by: Shannon Nelson <[e-mail]>
Acked-by: Jeff Kirsher <[e-mail]>
Signed-off-by: Dan Williams <[e-mail]>

drivers/dma/ioat_dma.c

···
 	struct dma_chan *chan, *_chan;
 	struct ioat_dma_chan *ioat_chan;
 
+	if (device->version != IOAT_VER_3_0)
+		cancel_delayed_work(&device->work);
+
 	ioat_dma_remove_interrupts(device);
 
 	dma_async_device_unregister(&device->common);
···
 	iounmap(device->reg_base);
 	pci_release_regions(device->pdev);
 	pci_disable_device(device->pdev);
-
-	if (device->version != IOAT_VER_3_0) {
-		cancel_delayed_work(&device->work);
-	}
 
 	list_for_each_entry_safe(chan, _chan,
 				 &device->common.channels, device_node) {