diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c
index 66ce29db7f0a..88808d9dc7d9 100644
--- a/drivers/staging/wilc1000/wilc_wlan.c
+++ b/drivers/staging/wilc1000/wilc_wlan.c
@@ -182,7 +182,7 @@ out:
 	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
 }
 
-static int wilc_wlan_txq_filter_dup_tcp_ack(struct net_device *dev)
+static void wilc_wlan_txq_filter_dup_tcp_ack(struct net_device *dev)
 {
 	struct wilc_vif *vif = netdev_priv(dev);
 	struct wilc *wilc = vif->wilc;
@@ -237,8 +237,6 @@ static int wilc_wlan_txq_filter_dup_tcp_ack(struct net_device *dev)
 					    msecs_to_jiffies(1));
 		dropped--;
 	}
-
-	return 1;
 }
 
 void wilc_enable_tcp_ack_filter(struct wilc_vif *vif, bool value)