From: Ido Schimmel <idosch@xxxxxxxxxxxx>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
[ Upstream commit 60a6531bfe49555581ccd65f66a350cc5693fcde ]
We can't be within an RCU read-side critical section when deleting
VLANs, as underlying drivers might sleep during the hardware operation.
Therefore, replace the RCU critical section with a mutex. This is
consistent with team_vlan_rx_add_vid.
Fixes: 3d249d4ca7d0 ("net: introduce ethernet teaming device")
Acked-by: Jiri Pirko <jiri@xxxxxxxxxxxx>
Signed-off-by: Ido Schimmel <idosch@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/net/team/team.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 020581ddfdd3..3059b8c3825f 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1831,10 +1831,10 @@ static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
struct team *team = netdev_priv(dev);
struct team_port *port;
- rcu_read_lock();
- list_for_each_entry_rcu(port, &team->port_list, list)
+ mutex_lock(&team->lock);
+ list_for_each_entry(port, &team->port_list, list)
vlan_vid_del(port->dev, proto, vid);
- rcu_read_unlock();
+ mutex_unlock(&team->lock);
return 0;
}
--
2.7.1
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