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    Subject[PATCH 3.18 54/69] ppp: Destroy the mutex when cleanup
    Date
    3.18-stable review patch.  If anyone has any objections, please let me know.

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

    From: Gao Feng <gfree.wind@vip.163.com>


    [ Upstream commit f02b2320b27c16b644691267ee3b5c110846f49e ]

    The mutex_destroy only makes sense when enable DEBUG_MUTEX. For the
    good readbility, it's better to invoke it in exit func when the init
    func invokes mutex_init.

    Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
    Acked-by: Guillaume Nault <g.nault@alphalink.fr>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/net/ppp/ppp_generic.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/net/ppp/ppp_generic.c
    +++ b/drivers/net/ppp/ppp_generic.c
    @@ -916,6 +916,7 @@ static __net_exit void ppp_exit_net(stru
    {
    struct ppp_net *pn = net_generic(net, ppp_net_id);

    + mutex_destroy(&pn->all_ppp_mutex);
    idr_destroy(&pn->units_idr);
    }


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