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net: openvswitch: don't unlock mutex when changing the user_features fails 

Unlocking of a not locked mutex is not allowed.
Other kernel thread may be in critical section while
we unlock it because of setting user_feature fail.

Fixes: 95a7233c4 ("net: openvswitch: Set OvS recirc_id from tc chain index")
Cc: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Tested-by: Greg Rose <gvrose8192@gmail.com>
Acked-by: William Tu <u9012063@gmail.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tonghao Zhang 2019-11-01 22:23:53 +08:00 committed by David S. Miller
parent 50b0e61b32
commit 4c76bf696a
1 changed files with 1 additions and 1 deletions
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2
net/openvswitch/datapath.c
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@ -1657,6 +1657,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
ovs_dp_reset_user_features(skb, info);
}
ovs_unlock();
goto err_destroy_meters;
}
@ -1673,7 +1674,6 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
return 0;
err_destroy_meters:
ovs_unlock();
ovs_meters_exit(dp);
err_destroy_ports_array:
kfree(dp->ports);