[PATCH] softmac: fix unbalanced mutex_lock/unlock in ieee80211softmac_wx_set_mlme

Routine ieee80211softmac_wx_set_mlme has one return that fails
to release a mutex acquired at entry.
Signed-off-by: NMaxime Austruy <maxime@tralhalla.org>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/ieee80211/softmac/ieee80211softmac_wx.c

@@ -495,7 +495,8 @@ ieee80211softmac_wx_set_mlme(struct net_device *dev,
 			printk(KERN_DEBUG PFX "wx_set_mlme: we should know the net here...\n");
 			goto out;
 		}
-		return ieee80211softmac_deauth_req(mac, net, reason);
+		err =  ieee80211softmac_deauth_req(mac, net, reason);
+		goto out;
 	case IW_MLME_DISASSOC:
 		ieee80211softmac_send_disassoc_req(mac, reason);
 		mac->associnfo.associated = 0;