Messages in this thread | | | Date | Tue, 24 Mar 2020 07:45:12 +0000 | From | Willy Wolff <> | Subject | Re: [PATCH] thermal/drivers/cpufreq_cooling: Fix return of cpufreq_set_cur_state |
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Many thanks.
On Mon, Mar 23, 2020 at 10:08:38PM +0100, Daniel Lezcano wrote: >On 23/03/2020 22:05, Amit Kucheria wrote: >> Hi Willy, >> >> On Sat, Mar 21, 2020 at 2:57 PM Willy Wolff <willy.mh.wolff.ml@gmail.com> wrote: >>> >>> The function freq_qos_update_request returns 0 or 1 describing update >>> effectiveness, and a negative error code on failure. However, >>> cpufreq_set_cur_state returns 0 on success or an error code otherwise. >>> >> >> Please improve the commit message with context from your earlier bug >> report thread and a summary of how the problem shows up. > >I've improved the commit message when applied: > >https://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git/commit/?h=testing&id=ff44f672d74178b3be19d41a169b98b3e391d4ce > >>> Signed-off-by: Willy Wolff <willy.mh.wolff.ml@gmail.com> >>> --- >>> drivers/thermal/cpufreq_cooling.c | 6 ++++-- >>> 1 file changed, 4 insertions(+), 2 deletions(-) >>> >>> diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c >>> index fe83d7a210d4..af55ac08e1bd 100644 >>> --- a/drivers/thermal/cpufreq_cooling.c >>> +++ b/drivers/thermal/cpufreq_cooling.c >>> @@ -431,6 +431,7 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev, >>> unsigned long state) >>> { >>> struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata; >>> + int ret; >>> >>> /* Request state should be less than max_level */ >>> if (WARN_ON(state > cpufreq_cdev->max_level)) >>> @@ -442,8 +443,9 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev, >>> >>> cpufreq_cdev->cpufreq_state = state; >>> >>> - return freq_qos_update_request(&cpufreq_cdev->qos_req, >>> - get_state_freq(cpufreq_cdev, state)); >>> + ret = freq_qos_update_request(&cpufreq_cdev->qos_req, >>> + get_state_freq(cpufreq_cdev, state)); >>> + return ret < 0 ? ret : 0; >>> } >>> >>> /* Bind cpufreq callbacks to thermal cooling device ops */ >>> -- >>> 2.20.1 >>> > > >-- > <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs > >Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | ><http://twitter.com/#!/linaroorg> Twitter | ><http://www.linaro.org/linaro-blog/> Blog >
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