pata_hpt37x: Fix cable detect bug spotted by Sergei

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 3816b86..46dc70e 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -329,7 +329,7 @@
 	/* Restore state */
 	pci_write_config_byte(pdev, 0x5B, scr2);
 
-	if (ata66 & (1 << ap->port_no))
+	if (ata66 & (2 >> ap->port_no))
 		ap->cbl = ATA_CBL_PATA40;
 	else
 		ap->cbl = ATA_CBL_PATA80;