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    Subject[PATCH 4.15 055/163] PM / runtime: Update links_count also if !CONFIG_SRCU
    Date
    4.15-stable review patch.  If anyone has any objections, please let me know.

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

    From: Lukas Wunner <lukas@wunner.de>

    commit 433986c2c265d106d6a8e88006e0131fefc92b7b upstream.

    Commit baa8809f6097 (PM / runtime: Optimize the use of device links)
    added an invocation of pm_runtime_drop_link() to __device_link_del().
    However there are two variants of that function, one for CONFIG_SRCU and
    another for !CONFIG_SRCU, and the commit only modified the former.

    Fixes: baa8809f6097 (PM / runtime: Optimize the use of device links)
    Cc: v4.10+ <stable@vger.kernel.org> # v4.10+
    Signed-off-by: Lukas Wunner <lukas@wunner.de>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/base/core.c | 3 +++
    1 file changed, 3 insertions(+)

    --- a/drivers/base/core.c
    +++ b/drivers/base/core.c
    @@ -313,6 +313,9 @@ static void __device_link_del(struct dev
    dev_info(link->consumer, "Dropping the link to %s\n",
    dev_name(link->supplier));

    + if (link->flags & DL_FLAG_PM_RUNTIME)
    + pm_runtime_drop_link(link->consumer);
    +
    list_del(&link->s_node);
    list_del(&link->c_node);
    device_link_free(link);

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