sundance: missing parentheses?

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/sundance.c

@@ -909,7 +909,7 @@ static void check_duplex(struct net_device *dev)
 			printk(KERN_INFO "%s: Setting %s-duplex based on MII #%d "
 				   "negotiated capability %4.4x.\n", dev->name,
 				   duplex ? "full" : "half", np->phys[0], negotiated);
-		iowrite16(ioread16(ioaddr + MACCtrl0) | duplex ? 0x20 : 0, ioaddr + MACCtrl0);
+		iowrite16(ioread16(ioaddr + MACCtrl0) | (duplex ? 0x20 : 0), ioaddr + MACCtrl0);
 	}
 }