linux-kernel - Re: [PATCH v9 4/4] rtc: ds1307: add frequency_test_enable sysfs attribute to check tick on m41txx

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 18 Jul 2018 19:26:03 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Giulio Benetti <giulio.benetti@...ronovasrl.com>
Cc:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        "open list:REAL TIME CLOCK (RTC) SUBSYSTEM" 
        <linux-rtc@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v9 4/4] rtc: ds1307: add frequency_test_enable sysfs
 attribute to check tick on m41txx

On Wed, Jul 18, 2018 at 5:06 PM, Giulio Benetti
<giulio.benetti@...ronovasrl.com> wrote:

>>> +       int ret;
>>> +
>>> +       ret = kstrtobool(buf, &freq_test_en);
>>> +       if (ret == -EINVAL) {

>> What kind of other error code you may expect and why they are not
>> considered as no error?

> According to documentation, kstrtobool can only fail with -EINVAL.
> See:
> https://elixir.bootlin.com/linux/v4.18-rc5/source/lib/kstrtox.c#L332

That's correct. So, what do you want to show by explicitly mentioned
an error code in the condition?

-- 
With Best Regards,
Andy Shevchenko