Messages in this thread | | | From | Andy Shevchenko <> | Date | Wed, 19 Apr 2017 19:26:28 +0300 | Subject | Re: [PATCH 1/2] hp-wmi: Fix error value for hp_wmi_tablet_state |
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On Wed, Apr 19, 2017 at 7:24 PM, Carlo Caione <carlo@endlessm.com> wrote: > On Wed, Apr 19, 2017 at 6:21 PM, Andy Shevchenko > <andy.shevchenko@gmail.com> wrote: >> On Sun, Apr 9, 2017 at 4:56 PM, Carlo Caione <carlo@caione.org> wrote: >>> From: Carlo Caione <carlo@endlessm.com> >>> >>> hp_wmi_tablet_state() fails to return the correct error code when >>> hp_wmi_perform_query() returns the HP WMI query specific error code >>> that is a positive value. >> >>> int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, >>> sizeof(state), sizeof(state)); >>> if (ret) >>> - return ret; >>> + return -EINVAL; >> >> Shouldn't be something like >> >> if (ret) >> return ret < 0 ? ret : -EINVAL; >> >> Looking into the code it looks like it may return all possible values: >> 0, negative, positive. > > When the HP WMI query returns a positive value something went wrong. > hp_wmi_perform_query() returns 0 on success.
Yes, that's what I didn't object anyhow. My point is not to shadow negative errors if any.
-- With Best Regards, Andy Shevchenko
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