On Fri, 09 Apr 2021 11:19:12 -0700
Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> wrote:
> On Fri, 2021-04-09 at 15:15 +0800, Jiapeng Chong wrote:
> > Fix the following gcc warning:
> >
> > drivers/hid/hid-sensor-custom.c:400:7: warning: variable ‘ret’ set
> > but
> > not used [-Wunused-but-set-variable].
> >
> > Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
> > Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx
Perhaps better to return ret if it is non zero?
I can't immediately figure out if there is a reason we know that can't
happen.
Jonathan
>
> > ---
> > drivers/hid/hid-sensor-custom.c | 5 ++---
> > 1 file changed, 2 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/hid/hid-sensor-custom.c b/drivers/hid/hid-
> > sensor-custom.c
> > index 2628bc5..e430673 100644
> > --- a/drivers/hid/hid-sensor-custom.c
> > +++ b/drivers/hid/hid-sensor-custom.c
> > @@ -397,15 +397,14 @@ static ssize_t store_value(struct device *dev,
> > struct device_attribute *attr,
> >
> > if (!strncmp(name, "value", strlen("value"))) {
> > u32 report_id;
> > - int ret;
> >
> > if (kstrtoint(buf, 0, &value) != 0)
> > return -EINVAL;
> >
> > report_id = sensor_inst->fields[field_index].attribute.
> > report_
> > id;
> > - ret = sensor_hub_set_feature(sensor_inst->hsdev,
> > report_id,
> > - index, sizeof(value),
> > &value);
> > + sensor_hub_set_feature(sensor_inst->hsdev, report_id,
> > index,
> > + sizeof(value), &value);
> > } else
> > return -EINVAL;
> >
>
