batman-adv: Fix genl notification for throughput_override

The throughput_override sysfs file is not below the meshif but below a
hardif. The kobj has therefore not a pointer which can be used to find the
batadv_priv data. The pointer stored in the hardif object must be used
instead to find the correct meshif private data.

Fixes: 7e6f461efe25 ("batman-adv: Trigger genl notification on sysfs config change")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>

diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 0b4b3fb..208655c 100644 (file)
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -1116,9 +1116,9 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
                                                struct attribute *attr,
                                                char *buff, size_t count)
 {
-       struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
        struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
        struct batadv_hard_iface *hard_iface;
+       struct batadv_priv *bat_priv;
        u32 tp_override;
        u32 old_tp_override;
        bool ret;
@@ -1147,7 +1147,10 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
 
        atomic_set(&hard_iface->bat_v.throughput_override, tp_override);
 
-       batadv_netlink_notify_hardif(bat_priv, hard_iface);
+       if (hard_iface->soft_iface) {
+               bat_priv = netdev_priv(hard_iface->soft_iface);
+               batadv_netlink_notify_hardif(bat_priv, hard_iface);
+       }
 
 out:
        batadv_hardif_put(hard_iface);