Re: [PATCH v7 01/20] PM / devfreq: exynos: Add generic exynos bus frequency driver

[Chanwoo Choi]

On Thu, Mar 31, 2016 at 9:10 PM, Sylwester Nawrocki
<s.nawrocki@xxxxxxxxxxx> wrote:
> On 03/31/2016 11:05 AM, Chanwoo Choi wrote:
>
>> +static int exynos_bus_target(struct device *dev, unsigned long *freq, u32 flags)
>> +{
>
>> +     new_opp = devfreq_recommended_opp(dev, freq, flags);
>> +     if (IS_ERR_OR_NULL(new_opp)) {
>> +             dev_err(dev, "failed to get recommed opp instance\n");
>
> s/recommed/recommended/

OK. I'll fix it.

>
>> +             rcu_read_unlock();
>> +             return PTR_ERR(new_opp);
>> +     }
>
>> +}
>
>> +static int exynos_bus_probe(struct platform_device *pdev)
>> +{
>
>> +     bus->devfreq = devm_devfreq_add_device(dev, profile, "simple_ondemand",
>> +                                             ondemand_data);
>> +     if (IS_ERR_OR_NULL(bus->devfreq)) {
>> +             dev_err(dev, "failed to add devfreq device\n");
>> +             return  PTR_ERR(bus->devfreq);
>> +     }
>
>> +}
>
> You should use IS_ERR() instead of IS_ERR_OR_NULL(), since functions
> of which the return value is being tested return only ERR_PTR() values.
> IS_ERR_OR_NULL() suggest NULL values are possible and then constructs
> like
>         if (IS_ERR_OR_NULL(result))
>                 return PTR_ERR(result);
>
> are not correct anyway.

OK. I'll use IS_ERR() instead of IS_ERR_OR_NULL()

Thanks,
Chanwoo Choi