staging: ks7010: rename identifier rc to ret

Driver uses identifier 'rc' to hold the value for error return
code. The rest of the driver predominately uses 'ret' for this
purpose. It is easier to follow the code if one name is used for one
task.

Rename identifier 'rc' to 'ret'.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks7010_sdio.c

@@ -309,19 +309,17 @@ static int write_to_device(struct ks_wlan_private *priv, unsigned char *buffer,
 static void tx_device_task(struct ks_wlan_private *priv)
 {
 	struct tx_device_buffer *sp;
-	int rc = 0;
+	int ret;
 
 	DPRINTK(4, "\n");
 	if (cnt_txqbody(priv) > 0 &&
 	    atomic_read(&priv->psstatus.status) != PS_SNOOZE) {
 		sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qhead];
 		if (priv->dev_state >= DEVICE_STATE_BOOT) {
-			rc = write_to_device(priv, sp->sendp, sp->size);
-			if (rc) {
-				DPRINTK(1, "write_to_device error !!(%d)\n",
-					rc);
-				queue_delayed_work(priv->ks_wlan_hw.
-						   ks7010sdio_wq,
+			ret = write_to_device(priv, sp->sendp, sp->size);
+			if (ret) {
+				DPRINTK(1, "write_to_device error !!(%d)\n", ret);
+				queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq,
 						   &priv->ks_wlan_hw.rw_wq, 1);
 				return;
 			}

drivers/staging/ks7010/ks_wlan_net.c

@@ -2902,7 +2902,7 @@ static
 int ks_wlan_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ks_wlan_private *priv = netdev_priv(dev);
-	int rc = 0;
+	int ret;
 
 	DPRINTK(3, "in_interrupt()=%ld\n", in_interrupt());
 
@@ -2918,14 +2918,13 @@ int ks_wlan_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (netif_running(dev))
 		netif_stop_queue(dev);
 
-	rc = hostif_data_request(priv, skb);
+	ret = hostif_data_request(priv, skb);
 	netif_trans_update(dev);
 
-	DPRINTK(4, "rc=%d\n", rc);
-	if (rc)
-		rc = 0;
+	if (ret)
+		DPRINTK(4, "hostif_data_request error: =%d\n", ret);
 
-	return rc;
+	return 0;
 }
 
 void send_packet_complete(void *arg1, void *arg2)