PCI/MSI: Remove unnecessary temporary variable

The only use of "status" is to hold a value which is immediately returned,
so just return and remove the variable directly.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>

drivers/pci/msi.c

@@ -920,7 +920,7 @@ EXPORT_SYMBOL(pci_msix_vec_count);
  **/
 int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec)
 {
-	int status, nr_entries;
+	int nr_entries;
 	int i, j;
 
 	if (!pci_msi_supported(dev, nvec))
@@ -951,8 +951,7 @@ int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec)
 		dev_info(&dev->dev, "can't enable MSI-X (MSI IRQ already assigned)\n");
 		return -EINVAL;
 	}
-	status = msix_capability_init(dev, entries, nvec);
-	return status;
+	return msix_capability_init(dev, entries, nvec);
 }
 EXPORT_SYMBOL(pci_enable_msix);