gianfar: gfar_process_frame returns void

No return code is expected from gfar_process_frame(), hence
change it to return void.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/gianfar.c

@@ -133,7 +133,7 @@ static void gfar_netpoll(struct net_device *dev);
 #endif
 int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
 static int gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue);
-static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
+static void gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
 			       int amount_pull, struct napi_struct *napi);
 void gfar_halt(struct net_device *dev);
 static void gfar_halt_nodisable(struct net_device *dev);
@@ -2692,7 +2692,7 @@ static inline void gfar_rx_checksum(struct sk_buff *skb, struct rxfcb *fcb)
 
 
 /* gfar_process_frame() -- handle one incoming packet if skb isn't NULL. */
-static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
+static void gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
 			       int amount_pull, struct napi_struct *napi)
 {
 	struct gfar_private *priv = netdev_priv(dev);
@@ -2742,8 +2742,6 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
 
 	if (unlikely(GRO_DROP == ret))
 		atomic64_inc(&priv->extra_stats.kernel_dropped);
-
-	return 0;
 }
 
 /* gfar_clean_rx_ring() -- Processes each frame in the rx ring