[PATCH 082/102] bonding: get netdev_rx_handler_unregister out of locks

From: Luis Henriques
Date: Mon Apr 08 2013 - 05:52:49 EST


3.5.7.10 -stable review patch. If anyone has any objections, please let me know.

------------------

From: Veaceslav Falico <vfalico@xxxxxxxxxx>

commit fcd99434fb5c137274d2e15dd2a6a7455f0f29ff upstream.

Now that netdev_rx_handler_unregister contains synchronize_net(), we need
to call it outside of bond->lock, cause it might sleep. Also, remove the
already unneded synchronize_net().

Signed-off-by: Veaceslav Falico <vfalico@xxxxxxxxxx>
Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
drivers/net/bonding/bond_main.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 1b6e13d..1a6b118 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1965,12 +1965,11 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
return -EINVAL;
}

+ write_unlock_bh(&bond->lock);
/* unregister rx_handler early so bond_handle_frame wouldn't be called
* for this slave anymore.
*/
netdev_rx_handler_unregister(slave_dev);
- write_unlock_bh(&bond->lock);
- synchronize_net();
write_lock_bh(&bond->lock);

if (!bond->params.fail_over_mac) {
--
1.8.1.2

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