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    Subject[PATCH 3.16.y-ckt 093/133] windfarm: decrement client count when unregistering
    Date
    3.16.7-ckt18 -stable review patch.  If anyone has any objections, please let me know.

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

    From: Paul Bolle <pebolle@tiscali.nl>

    commit fe2b592173ff0274e70dc44d1d28c19bb995aa7c upstream.

    wf_unregister_client() increments the client count when a client
    unregisters. That is obviously incorrect. Decrement that client count
    instead.

    Fixes: 75722d3992f5 ("[PATCH] ppc64: Thermal control for SMU based machines")

    Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
    ---
    drivers/macintosh/windfarm_core.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
    index 3ee198b65843..cc7ece1712b5 100644
    --- a/drivers/macintosh/windfarm_core.c
    +++ b/drivers/macintosh/windfarm_core.c
    @@ -435,7 +435,7 @@ int wf_unregister_client(struct notifier_block *nb)
    {
    mutex_lock(&wf_lock);
    blocking_notifier_chain_unregister(&wf_client_list, nb);
    - wf_client_count++;
    + wf_client_count--;
    if (wf_client_count == 0)
    wf_stop_thread();
    mutex_unlock(&wf_lock);

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