isci: bypass scic_controller_get_handler_methods()

The indirection is unecessary and broken in the current case that assigns the
handlers based on a not up-to-date pdev->msix_enabled value.

Route the handlers directly to the requisite core routines.

Todo: hook up error interrupt handling

Reported-by: Jeff Garzik <jeff@garzik.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index e3d9b15..f2bd92b 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -334,7 +334,7 @@
 		BUG_ON(!isci_host);
 
 		/* @todo: need to handle error case. */
-		err = devm_request_irq(&pdev->dev, msix->vector, isci_isr, 0,
+		err = devm_request_irq(&pdev->dev, msix->vector, isci_msix_isr, 0,
 				       DRV_NAME"-msix", isci_host);
 		if (!err)
 			continue;
@@ -353,7 +353,7 @@
 	return 0;
 
  intx:
-	err = devm_request_irq(&pdev->dev, pdev->irq, isci_legacy_isr,
+	err = devm_request_irq(&pdev->dev, pdev->irq, isci_intx_isr,
 			       IRQF_SHARED, DRV_NAME"-intx", pdev);
 
 	return err;