Revert "cpufreq: Fix possible race in cpufreq online error path"
authorViresh Kumar <viresh.kumar@linaro.org>
Mon, 9 May 2022 03:57:37 +0000 (09:27 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Jun 2022 08:22:55 +0000 (10:22 +0200)
commitca3fd5ff7b80552c1493ba5cd200faa847ba7c4d
tree2ff800bcf9df8032a0238daeea57b4078c15ca6e
parent10f537219629769498ecb8515e096be213224c24
Revert "cpufreq: Fix possible race in cpufreq online error path"

[ Upstream commit 85f0e42bd65d01b351d561efb38e584d4c596553 ]

This reverts commit f346e96267cd76175d6c201b40f770c0116a8a04.

The commit tried to fix a possible real bug but it made it even worse.
The fix was simply buggy as now an error out to out_offline_policy or
out_exit_policy will try to release a semaphore which was never taken in
the first place. This works fine only if we failed late, i.e. via
out_destroy_policy.

Fixes: f346e96267cd ("cpufreq: Fix possible race in cpufreq online error path")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/cpufreq/cpufreq.c