wireless: checkpatch cleanups

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index 4ef5b9e..19c2873 100644
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -32,10 +32,8 @@
 static inline void libertas_cancel_association_work(wlan_private *priv)
 {
 	cancel_delayed_work(&priv->assoc_work);
-	if (priv->adapter->pending_assoc_req) {
-		kfree(priv->adapter->pending_assoc_req);
-		priv->adapter->pending_assoc_req = NULL;
-	}
+	kfree(priv->adapter->pending_assoc_req);
+	priv->adapter->pending_assoc_req = NULL;
 }