rtl8187: remove priv->mode

It is checked in add_interface, but there it is easily replaced with
a check of priv->vif.  If that information should become necessary,
it is available in vif->type anyway.

It is also checked in led_turn_on and led_turn_off, where I made the
substitutions as described above.  Of course, these checks seem to
have been incorrect since the driver was using NL80211_IFTYPE_MONITOR
to indicate no interface rather than NL80211_IFTYPE_UNSPECIFIED.
Anyway, I think these checks may be extraneous...?

Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rtl818x/rtl8187.h b/drivers/net/wireless/rtl818x/rtl8187.h
index 6af0f3f..6bb3211 100644
--- a/drivers/net/wireless/rtl818x/rtl8187.h
+++ b/drivers/net/wireless/rtl818x/rtl8187.h
@@ -92,7 +92,7 @@
 	struct rtl818x_csr *map;
 	const struct rtl818x_rf_ops *rf;
 	struct ieee80211_vif *vif;
-	int mode;
+
 	/* The mutex protects the TX loopback state.
 	 * Any attempt to set channels concurrently locks the device.
 	 */
diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c
index bc5726d..1cb0eff 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c
@@ -1025,12 +1025,11 @@
 	int ret = -EOPNOTSUPP;
 
 	mutex_lock(&priv->conf_mutex);
-	if (priv->mode != NL80211_IFTYPE_MONITOR)
+	if (priv->vif)
 		goto exit;
 
 	switch (conf->type) {
 	case NL80211_IFTYPE_STATION:
-		priv->mode = conf->type;
 		break;
 	default:
 		goto exit;
@@ -1055,7 +1054,6 @@
 {
 	struct rtl8187_priv *priv = dev->priv;
 	mutex_lock(&priv->conf_mutex);
-	priv->mode = NL80211_IFTYPE_MONITOR;
 	priv->vif = NULL;
 	mutex_unlock(&priv->conf_mutex);
 }
@@ -1365,7 +1363,6 @@
 	dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
 
 
-	priv->mode = NL80211_IFTYPE_MONITOR;
 	dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
 		     IEEE80211_HW_SIGNAL_DBM |
 		     IEEE80211_HW_RX_INCLUDES_FCS;
diff --git a/drivers/net/wireless/rtl818x/rtl8187_leds.c b/drivers/net/wireless/rtl818x/rtl8187_leds.c
index ded44c0..f82aa8b 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_leds.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_leds.c
@@ -33,7 +33,7 @@
 	struct rtl8187_led *led = &priv->led_tx;
 
 	/* Don't change the LED, when the device is down. */
-	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+	if (!priv->vif || priv->vif->type == NL80211_IFTYPE_UNSPECIFIED)
 		return ;
 
 	/* Skip if the LED is not registered. */
@@ -71,7 +71,7 @@
 	struct rtl8187_led *led = &priv->led_tx;
 
 	/* Don't change the LED, when the device is down. */
-	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+	if (!priv->vif || priv->vif->type == NL80211_IFTYPE_UNSPECIFIED)
 		return ;
 
 	/* Skip if the LED is not registered. */