1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index feaf0e0577d7..43695b76606f 100644
--- a/drivers/net/sundance.c
+++ b/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);
         }
 }