Re: [PATCH] opp: of: drop incorrect lockdep_assert_held()

From: Viresh Kumar
Date: Wed Oct 23 2019 - 01:30:12 EST


On 10-10-19, 16:00, Viresh Kumar wrote:
> _find_opp_of_np() doesn't traverse the list of OPP tables but instead
> just the entries within an OPP table and so only requires to lock the
> OPP table itself.
>
> The lockdep_assert_held() was added there by mistake and isn't really
> required.
>
> Fixes: 5d6d106fa455 ("OPP: Populate required opp tables from "required-opps" property")
> Cc: v5.0+ <stable@xxxxxxxxxxxxxxx> # v5.0+
> Reported-by: Niklas Cassel <niklas.cassel@xxxxxxxxxx>
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---
> drivers/opp/of.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/opp/of.c b/drivers/opp/of.c
> index 1813f5ad5fa2..6dc41faf74b5 100644
> --- a/drivers/opp/of.c
> +++ b/drivers/opp/of.c
> @@ -77,8 +77,6 @@ static struct dev_pm_opp *_find_opp_of_np(struct opp_table *opp_table,
> {
> struct dev_pm_opp *opp;
>
> - lockdep_assert_held(&opp_table_lock);
> -
> mutex_lock(&opp_table->lock);
>
> list_for_each_entry(opp, &opp_table->opp_list, node) {

@Niklas, any inputs from your side here would be appreciated :)

--
viresh