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    Subject[PATCH 4.17 051/101] xen-netfront: Fix mismatched rtnl_unlock
    Date
    4.17-stable review patch.  If anyone has any objections, please let me know.

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

    From: Ross Lagerwall <ross.lagerwall@citrix.com>

    [ Upstream commit cb257783c2927b73614b20f915a91ff78aa6f3e8 ]

    Fixes: f599c64fdf7d ("xen-netfront: Fix race between device setup and open")
    Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
    Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
    Reviewed-by: Juergen Gross <jgross@suse.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/net/xen-netfront.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/drivers/net/xen-netfront.c
    +++ b/drivers/net/xen-netfront.c
    @@ -1810,7 +1810,7 @@ static int talk_to_netback(struct xenbus
    err = xen_net_read_mac(dev, info->netdev->dev_addr);
    if (err) {
    xenbus_dev_fatal(dev, err, "parsing %s/mac", dev->nodename);
    - goto out;
    + goto out_unlocked;
    }

    rtnl_lock();
    @@ -1925,6 +1925,7 @@ abort_transaction_no_dev_fatal:
    xennet_destroy_queues(info);
    out:
    rtnl_unlock();
    +out_unlocked:
    device_unregister(&dev->dev);
    return err;
    }

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