[PATCH 0/4] thermal: fix locking regressions in linux-next

Daniel Lezcano daniel.lezcano at linaro.org
Wed Dec 14 06:51:54 PST 2022


Hi Johan,

thanks for your fixes

On 14/12/2022 14:16, Johan Hovold wrote:
> This series fixes some of the fallout after the thermal changes that
> just landed in linux-next.
> 
> Lockdep reported a lock inversion in one of the Qualcomm drivers and a
> closer review revealed that the changes had also broken the sysfs
> interface for at least three drivers.
> 
> Note that a simple revert of the offending patches was not an option as
> some of the infrastructure that the old implementation relied on has
> also been removed.
> 
> Johan
> 
> 
> Johan Hovold (4):
>    thermal/drivers/qcom: fix set_trip_temp() deadlock
>    thermal/drivers/exynos: fix set_trip_temp() deadlock
>    thermal/drivers/tegra: fix set_trip_temp() deadlock
>    thermal/drivers/qcom: fix lock inversion
> 
>   drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 7 ++++++-
>   drivers/thermal/samsung/exynos_tmu.c        | 2 +-
>   drivers/thermal/tegra/soctherm.c            | 2 +-
>   drivers/thermal/thermal_core.c              | 1 +
>   include/linux/thermal.h                     | 2 ++
>   5 files changed, 11 insertions(+), 3 deletions(-)
> 

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