thermal: intel: int340x: processor_thermal: Fix additional deadlock

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commit a57cc2dbb3 upstream.

Commit 52f04f10b9 ("thermal: intel: int340x: processor_thermal: Fix
deadlock") addressed deadlock issue during user space trip update. But it
missed a case when thermal zone device is disabled when user writes 0.

Call to thermal_zone_device_disable() also causes deadlock as it also
tries to lock tz->lock, which is already claimed by trip_point_temp_store()
in the thermal core code.

Remove call to thermal_zone_device_disable() in the function
sys_set_trip_temp(), which is called from trip_point_temp_store().

Fixes: 52f04f10b9 ("thermal: intel: int340x: processor_thermal: Fix deadlock")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: 6.2+ <stable@vger.kernel.org> # 6.2+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Srinivas Pandruvada 2023-03-29 08:22:07 -07:00 • committed by Greg Kroah-Hartman

parent 6b704c1873

commit c7f751b5fd

1 changed files with 0 additions and 1 deletions

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drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c

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