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| author | nikolay@redhat.com <nikolay@redhat.com> | 2013-04-18 07:33:36 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-19 17:48:19 -0400 |
| commit | 3c5913b53fefc9d9e15a2d0f93042766658d9f3f (patch) | |
| tree | 772296984f4e7f56b8cc0aa4949cfee3582ddc8b | |
| parent | a506e7b479e1215c230e4b87fedc246cf748537f (diff) | |
| download | linux-3c5913b53fefc9d9e15a2d0f93042766658d9f3f.tar.bz2 | |
bonding: primary_slave & curr_active_slave are not cleaned on enslave failure
On enslave failure primary_slave can point to new_slave which is to be
freed, and the same applies to curr_active_slave. So check if this is
the case and clean up properly after err_detach because that's the first
error code path after they're set.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index dd67c49070d7..1137d5eac450 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1909,7 +1909,17 @@ err_detach: bond_del_vlans_from_slave(bond, slave_dev); write_lock_bh(&bond->lock); bond_detach_slave(bond, new_slave); + if (bond->primary_slave == new_slave) + bond->primary_slave = NULL; write_unlock_bh(&bond->lock); + if (bond->curr_active_slave == new_slave) { + read_lock(&bond->lock); + write_lock_bh(&bond->curr_slave_lock); + bond_change_active_slave(bond, NULL); + bond_select_active_slave(bond); + write_unlock_bh(&bond->curr_slave_lock); + read_unlock(&bond->lock); + } err_close: slave_dev->priv_flags &= ~IFF_BONDING; |