thermal: Fix locking in cooling device sysfs update cur_state
authorThara Gopinath <thara.gopinath@linaro.org>
Tue, 27 Nov 2018 22:43:11 +0000 (17:43 -0500)
committerZhang Rui <rui.zhang@intel.com>
Fri, 30 Nov 2018 08:57:51 +0000 (16:57 +0800)
commit68000a0d983f539c95ebe5dccd4f29535c7ac0af
treee0d573af5721a3ac9a10943bc09ce1a2a982ccef
parent964f4843a455d2ffb199512b08be8d5f077c4cac
thermal: Fix locking in cooling device sysfs update cur_state

Sysfs interface to update cooling device cur_state does not
currently holding cooling device lock sometimes leading to
stale values in cur_state if getting updated simultanelously
from user space and thermal framework. Adding the proper locking
code fixes this issue.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
drivers/thermal/thermal_sysfs.c