staging: ks7010: rename return value identifier

Driver uses multiple identifier names for the same task (retval, ret,
rc). It would be easier to read the code if a single task is
identified with a single name. 'ret' is the most common return value
identifier name found in the kernel tree, following the principle of
least surprise using 'ret' is a decent choice.

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

drivers/staging/ks7010/ks_hostif.c

@@ -402,7 +402,7 @@ void hostif_data_indication(struct ks_wlan_private *priv)
 	unsigned short eth_proto;
 	struct ieee802_1x_hdr *aa1x_hdr;
 	struct wpa_eapol_key *eap_key;
-	int rc;
+	int ret;
 
 	DPRINTK(3, "\n");
 
@@ -434,8 +434,8 @@ void hostif_data_indication(struct ks_wlan_private *priv)
 
 	/*  for WPA */
 	if (auth_type != TYPE_DATA && priv->wpa.rsn_enabled) {
-		rc = hostif_data_indication_wpa(priv, auth_type);
-		if (rc)
+		ret = hostif_data_indication_wpa(priv, auth_type);
+		if (ret)
 			return;
 	}
 
@@ -1124,12 +1124,12 @@ int hostif_data_request(struct ks_wlan_private *priv, struct sk_buff *packet)
 	struct ieee802_1x_hdr *aa1x_hdr;
 	struct wpa_eapol_key *eap_key;
 	struct ethhdr *eth;
-	int rc;
+	int ret;
 
 	packet_len = packet->len;
 	if (packet_len > ETH_FRAME_LEN) {
 		DPRINTK(1, "bad length packet_len=%d\n", packet_len);
-		rc = -EOVERFLOW;
+		ret = -EOVERFLOW;
 		goto err_kfree_skb;
 	}
 
@@ -1157,7 +1157,7 @@ int hostif_data_request(struct ks_wlan_private *priv, struct sk_buff *packet)
 
 	if (!pp) {
 		DPRINTK(3, "allocate memory failed..\n");
-		rc = -ENOMEM;
+		ret = -ENOMEM;
 		goto err_kfree_skb;
 	}
 
@@ -1171,7 +1171,7 @@ int hostif_data_request(struct ks_wlan_private *priv, struct sk_buff *packet)
 	if (memcmp(&priv->eth_addr[0], eth->h_source, ETH_ALEN)) {
 		DPRINTK(1, "invalid mac address !!\n");
 		DPRINTK(1, "ethernet->h_source=%pM\n", eth->h_source);
-		rc = -ENXIO;
+		ret = -ENXIO;
 		goto err_kfree;
 	}
 
@@ -1281,7 +1281,7 @@ int hostif_data_request(struct ks_wlan_private *priv, struct sk_buff *packet)
 err_kfree_skb:
 	dev_kfree_skb(packet);
 
-	return rc;
+	return ret;
 }
 
 #define ps_confirm_wait_inc(priv) do { \

drivers/staging/ks7010/ks_wlan_net.c

@@ -2842,20 +2842,20 @@ static const struct iw_handler_def ks_wlan_handler_def = {
 static int ks_wlan_netdev_ioctl(struct net_device *dev, struct ifreq *rq,
 				int cmd)
 {
-	int rc = 0;
+	int ret;
 	struct iwreq *wrq = (struct iwreq *)rq;
 
 	switch (cmd) {
 	case SIOCIWFIRSTPRIV + 20:	/* KS_WLAN_SET_STOP_REQ */
-		rc = ks_wlan_set_stop_request(dev, NULL, &wrq->u.mode, NULL);
+		ret = ks_wlan_set_stop_request(dev, NULL, &wrq->u.mode, NULL);
 		break;
 		// All other calls are currently unsupported
 	default:
-		rc = -EOPNOTSUPP;
+		ret = -EOPNOTSUPP;
 	}
 
-	DPRINTK(5, "return=%d\n", rc);
-	return rc;
+	DPRINTK(5, "return=%d\n", ret);
+	return ret;
 }
 
 static