libata: sata_sis fixes

The sata_sis driver supports SATA and PATA ports. The broken support
of both types in one controller is fixed.
Signed-off-by: NUwe Koziolek <uwe.koziolek@gmx.net>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/ata/sata_sis.c

@@ -255,7 +255,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
 	struct ata_port_info pi = sis_port_info;
-	const struct ata_port_info *ppi[] = { &pi, NULL };
+	const struct ata_port_info *ppi[] = { &pi, &pi };
 	struct ata_host *host;
 	u32 genctl, val;
 	u8 pmr;