powerpc/pseries: Check for MSI-X also in rtas_msi_pci_irq_fixup()

We also need to check that the device isn't using MSI-X in the irq fixup
routine, otherwise we might leave MSI-Xs configured at boot.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/pseries/msi.c

@@ -244,8 +244,8 @@ static void rtas_msi_pci_irq_fixup(struct pci_dev *pdev)
 	}
 
 	/* No MSI -> MSIs can't have been assigned by fw, leave LSI */
-	if (check_req_msi(pdev, 1)) {
-		dev_dbg(&pdev->dev, "rtas_msi: no req#msi, nothing to do.\n");
+	if (check_req_msi(pdev, 1) && check_req_msix(pdev, 1)) {
+		dev_dbg(&pdev->dev, "rtas_msi: no req#msi/x, nothing to do.\n");
 		return;
 	}