ide: ide_setup_dma() assumes 8 ports

According to http://marc.info/?l=linux-ide&m=114346138611631, the drivers must
always register 8 DMA ports with ide_setup_dma(), so its last argument is not
needed. While at it, kill some useless parens in that function...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index 1268593..d33a3f9 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -1413,7 +1413,7 @@
 
 	local_irq_restore(flags);
 
-	ide_setup_dma(hwif, dmabase, 8);
+	ide_setup_dma(hwif, dmabase);
 }
 
 static void __devinit hpt374_init(struct pci_dev *dev, struct pci_dev *dev2)