Fixed a compiler warning.

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1817 7894878c-1315-0410-8ee3-d5d059ff63e0

kernel/busses/i2c-sis645.c

@@ -233,7 +233,6 @@ static int __devinit sis645_build_dev(struct pci_dev **smbus_dev,
 static int __devinit sis645_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	struct pci_dev *SIS645_SMBUS_dev;
-	int ret;
 	u16 ww = 0;
 
 	if (sis645_smbus_base) {
@@ -288,6 +287,10 @@ static int __devinit sis645_probe(struct pci_dev *dev, const struct pci_device_i
 	if (!(SIS645_SMBUS_dev = pci_find_device(PCI_VENDOR_ID_SI,
 			PCI_DEVICE_ID_SI_SMBUS, NULL))) {
 
+#ifdef CONFIG_HOTPLUG
+		int ret;
+#endif
+
 		printk(KERN_INFO DRV_NAME ": "
 			"Attempting to enable SiS645 SMBus device\n");