ieee802154: netlink add rtnl lock

[firefly-linux-kernel-4.4.55.git] / net / ieee802154 / nl-mac.c

diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
index 7127b9d1a68409457a1d570117ca1a962b6f2293..50e9863823a5035f78fc209260991a3da31a2ddb 100644 (file)
--- a/net/ieee802154/nl-mac.c
+++ b/net/ieee802154/nl-mac.c
@@ -113,7 +113,9 @@ static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
        if (ops->get_mac_params) {
                struct ieee802154_mac_params params;
 
+               rtnl_lock();
                ops->get_mac_params(dev, &params);
+               rtnl_unlock();
 
                if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER,
                               params.transmit_power) ||
@@ -348,8 +350,10 @@ int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
                return -EINVAL;
        }
 
+       rtnl_lock();
        ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
                bcn_ord, sf_ord, pan_coord, blx, coord_realign);
+       rtnl_unlock();
 
        /* FIXME: add validation for unused parameters to be sane
         * for SoftMAC
@@ -497,6 +501,7 @@ int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
        phy = dev->ieee802154_ptr->wpan_phy;
        get_device(&phy->dev);
 
+       rtnl_lock();
        ops->get_mac_params(dev, &params);
 
        if (info->attrs[IEEE802154_ATTR_TXPOWER])
@@ -524,6 +529,7 @@ int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
                params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]);
 
        rc = ops->set_mac_params(dev, &params);
+       rtnl_unlock();
 
        wpan_phy_put(phy);
        dev_put(dev);