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| author | David S. Miller <davem@davemloft.net> | 2018-09-25 10:35:29 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-25 10:35:29 -0700 |
| commit | a06ee256e5d6f03fffbd088de9bf84035658cc5a (patch) | |
| tree | 9b88044cd4a46496d15a05b43246810c8b677f46 /net/batman-adv/soft-interface.c | |
| parent | bd6207202db8974ca3d3183ca0d5611d45b2973c (diff) | |
| parent | 846e8dd47c264e0b359afed28ea88e0acdee6818 (diff) | |
| download | linux-stable-a06ee256e5d6f03fffbd088de9bf84035658cc5a.tar.gz linux-stable-a06ee256e5d6f03fffbd088de9bf84035658cc5a.tar.bz2 linux-stable-a06ee256e5d6f03fffbd088de9bf84035658cc5a.zip | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Version bump conflict in batman-adv, take what's in net-next.
iavf conflict, adjustment of netdev_ops in net-next conflicting
with poll controller method removal in net.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/batman-adv/soft-interface.c')
| -rw-r--r-- | net/batman-adv/soft-interface.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 2c7d95727f90..5db5a0a4c959 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -574,15 +574,20 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid) struct batadv_softif_vlan *vlan; int err; + spin_lock_bh(&bat_priv->softif_vlan_list_lock); + vlan = batadv_softif_vlan_get(bat_priv, vid); if (vlan) { batadv_softif_vlan_put(vlan); + spin_unlock_bh(&bat_priv->softif_vlan_list_lock); return -EEXIST; } vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC); - if (!vlan) + if (!vlan) { + spin_unlock_bh(&bat_priv->softif_vlan_list_lock); return -ENOMEM; + } vlan->bat_priv = bat_priv; vlan->vid = vid; @@ -590,17 +595,23 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid) atomic_set(&vlan->ap_isolation, 0); + kref_get(&vlan->refcount); + hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list); + spin_unlock_bh(&bat_priv->softif_vlan_list_lock); + + /* batadv_sysfs_add_vlan cannot be in the spinlock section due to the + * sleeping behavior of the sysfs functions and the fs_reclaim lock + */ err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan); if (err) { - kfree(vlan); + /* ref for the function */ + batadv_softif_vlan_put(vlan); + + /* ref for the list */ + batadv_softif_vlan_put(vlan); return err; } - spin_lock_bh(&bat_priv->softif_vlan_list_lock); - kref_get(&vlan->refcount); - hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list); - spin_unlock_bh(&bat_priv->softif_vlan_list_lock); - /* add a new TT local entry. This one will be marked with the NOPURGE * flag */ |