pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.
Signed-off-by: NAlexander Gordeev <agordeev@redhat.com>
Reviewed-by: NJack Wang <xjtuwjp@gmail.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>

drivers/scsi/pm8001/pm8001_init.c

@@ -748,15 +748,16 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 		sizeof(pm8001_ha->msix_entries[0]);
 	for (i = 0; i < max_entry ; i++)
 		pm8001_ha->msix_entries[i].entry = i;
-	rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries,
+	rc = pci_enable_msix_exact(pm8001_ha->pdev, pm8001_ha->msix_entries,
 		number_of_intr);
 	pm8001_ha->number_of_intr = number_of_intr;
-	if (!rc) {
+	if (rc)
+		return rc;
+
 	PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
-			"pci_enable_msix request ret:%d no of intr %d\n",
+		"pci_enable_msix_exact request ret:%d no of intr %d\n",
 				rc, pm8001_ha->number_of_intr));
 
-
 	for (i = 0; i < number_of_intr; i++) {
 		snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
 				DRV_NAME"%d", i);
@@ -767,15 +768,15 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 			pm8001_interrupt_handler_msix, flag,
 			intr_drvname[i], &(pm8001_ha->irq_vector[i]));
 		if (rc) {
-				for (j = 0; j < i; j++)
-					free_irq(
-					pm8001_ha->msix_entries[j].vector,
+			for (j = 0; j < i; j++) {
+				free_irq(pm8001_ha->msix_entries[j].vector,
 					&(pm8001_ha->irq_vector[i]));
+			}
 			pci_disable_msix(pm8001_ha->pdev);
 			break;
 		}
 	}
-	}
+
 	return rc;
 }
 #endif