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authorTonghao Zhang <xiangxia.m.yue@gmail.com>2019-11-01 22:23:53 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-26 10:01:05 +0100
commit79310c41b0c789a98ab662c02263cc4038ffd023 (patch)
treefc9293f1c5f88c5e6f38b390e16e85043cf65dc2 /net/openvswitch
parent7c3327816d3491675b6368575bef73d547a6d59f (diff)
net: openvswitch: don't unlock mutex when changing the user_features fails
[ Upstream commit 4c76bf696a608ea5cc555fe97ec59a9033236604 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/openvswitch')
-rw-r--r--net/openvswitch/datapath.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 23f67b8fdeaa..3eed90bfa2bf 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1667,6 +1667,7 @@ 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;
}
@@ -1683,7 +1684,6 @@ 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);