6lowpan: fix segmentation fault caused by mlme request

[linux-flexiantxendom0-3.2.10.git] / net / ieee802154 / 6lowpan.c

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 3685158..f6b1694 100644 (file)
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1044,6 +1044,24 @@ static void lowpan_dev_free(struct net_device *dev)
        free_netdev(dev);
 }
 
+static struct wpan_phy *lowpan_get_phy(const struct net_device *dev)
+{
+       struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
+       return ieee802154_mlme_ops(real_dev)->get_phy(real_dev);
+}
+
+static u16 lowpan_get_pan_id(const struct net_device *dev)
+{
+       struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
+       return ieee802154_mlme_ops(real_dev)->get_pan_id(real_dev);
+}
+
+static u16 lowpan_get_short_addr(const struct net_device *dev)
+{
+       struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
+       return ieee802154_mlme_ops(real_dev)->get_short_addr(real_dev);
+}
+
 static struct header_ops lowpan_header_ops = {
        .create = lowpan_header_create,
 };
@@ -1053,6 +1071,12 @@ static const struct net_device_ops lowpan_netdev_ops = {
        .ndo_set_mac_address    = eth_mac_addr,
 };
 
+static struct ieee802154_mlme_ops lowpan_mlme = {
+       .get_pan_id = lowpan_get_pan_id,
+       .get_phy = lowpan_get_phy,
+       .get_short_addr = lowpan_get_short_addr,
+};
+
 static void lowpan_setup(struct net_device *dev)
 {
        pr_debug("(%s)\n", __func__);
@@ -1070,6 +1094,7 @@ static void lowpan_setup(struct net_device *dev)
 
        dev->netdev_ops         = &lowpan_netdev_ops;
        dev->header_ops         = &lowpan_header_ops;
+       dev->ml_priv            = &lowpan_mlme;
        dev->destructor         = lowpan_dev_free;
 }