linux-kernel - Re: [PATCH 2/2] HID: hid-sensor-custom: Process failure of sensor_hub_set

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Date:   Wed, 5 May 2021 15:28:03 +0200
From:   Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Jonathan Cameron <jic23@...nel.org>,
        jiapeng.chong@...ux.alibaba.com,
        "open list:HID CORE LAYER" <linux-input@...r.kernel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: Re: [PATCH 2/2] HID: hid-sensor-custom: Process failure of sensor_hub_set_feature()

On Wed, May 5, 2021 at 2:38 PM Jiri Kosina <jikos@...nel.org> wrote:
>
> On Thu, 15 Apr 2021, Srinivas Pandruvada wrote:
>
> > When user modifies a custom feature value and sensor_hub_set_feature()
> > fails, return error.
> >
> > Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> > Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
> > ---
> > Replaces patch: HID: hid-sensor-custom: remove useless variable
> > by Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
> >
> >  drivers/hid/hid-sensor-custom.c | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/hid/hid-sensor-custom.c b/drivers/hid/hid-sensor-custom.c
> > index 2628bc53ed80..58b54b127cdf 100644
> > --- a/drivers/hid/hid-sensor-custom.c
> > +++ b/drivers/hid/hid-sensor-custom.c
> > @@ -406,6 +406,8 @@ static ssize_t store_value(struct device *dev, struct device_attribute *attr,
> >                                                               report_id;
> >               ret = sensor_hub_set_feature(sensor_inst->hsdev, report_id,
> >                                            index, sizeof(value), &value);
> > +             if (ret)
> > +                     return ret;
>
> What tree is this patch against? In my tree, we're not even assigning
> sensor_hub_set_feature() return value to anything.
>

I guess there was a "collision". At roughly the same time I merged
https://patchwork.kernel.org/project/linux-input/list/?series=456269
people were starting to send various patches for the same thing.

Srinivas, either the change in for-next (and probably Linus' master
now) is fine, or could you rebase on top of hid.git?

Cheers,
Benjamin