cxl/pci: Allocate irq vectors earlier during probe

Move the cxl_alloc_irq_vectors() call further up in the probing
in order to allow for mailbox interrupt usage. No change in
semantics.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20230523170927.20685-3-dave@stgolabs.net
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Author: Davidlohr Bueso

drivers/cxl/pci.c

@@ -714,6 +714,10 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	else
 		dev_warn(&pdev->dev, "Media not active (%d)\n", rc);
 
+	rc = cxl_alloc_irq_vectors(pdev);
+	if (rc)
+		return rc;
+
 	rc = cxl_pci_setup_mailbox(cxlds);
 	if (rc)
 		return rc;
@@ -738,10 +742,6 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (rc)
 		return rc;
 
-	rc = cxl_alloc_irq_vectors(pdev);
-	if (rc)
-		return rc;
-
 	cxlmd = devm_cxl_add_memdev(cxlds);
 	if (IS_ERR(cxlmd))
 		return PTR_ERR(cxlmd);