Re: [PATCH] [v2] iio: magnetometer: ak8974: Fix runtime PM imbalance on error

From: Jonathan Cameron
Date: Sun May 31 2020 - 10:00:07 EST


On Tue, 26 May 2020 13:13:56 +0200
Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:

> On Tue, May 26, 2020 at 12:47 PM Dinghao Liu <dinghao.liu@xxxxxxxxxx> wrote:
>
> > When devm_regmap_init_i2c() returns an error code, a pairing
> > runtime PM usage counter decrement is needed to keep the
> > counter balanced. For error paths after ak8974_set_power(),
> > ak8974_detect() and ak8974_reset(), things are the same.
> >
> > However, When iio_triggered_buffer_setup() returns an error
> > code, there will be two PM usgae counter decrements.
> >
> > Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
> > ---
> >
> > Changelog:
> >
> > v2: - Change 3 goto targets from "power_off" to
> > "disabel_pm". Remove unused lable "power_off".
> > Move 3 PM runtime related calls to the end of
> > the function.
>
> Thanks for fixing this Dinghao!
> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Could I have a fixes tag for this one?

Thanks,

Jonathan

>
> Yours,
> Linus Walleij