PCI quirks: remove redundant check

Removes redundant check for dev->subordinate; if it is NULL, the function
returns before the patch-affected code region.

Signed-off-by: David Rientjes <[e-mail]>
Acked-by: Brice Goglin <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/pci/quirks.c

···
 	 * a single one having MSI is enough to be sure that MSI are supported.
 	 */
 	pdev = pci_get_slot(dev->bus, 0);
-	if (dev->subordinate && !msi_ht_cap_enabled(dev)
-	    && !msi_ht_cap_enabled(pdev)) {
+	if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
 		printk(KERN_WARNING "PCI: MSI quirk detected. "
 		       "MSI disabled on chipset %s.\n",
 		       pci_name(dev));