Commit-ID: 1b5d43cfb69759d8ef8d30469cea31d0c037aed5 Gitweb: https://git.kernel.org/tip/1b5d43cfb69759d8ef8d30469cea31d0c037aed5 Author: Jules Maselbas <jules.masel...@arm.com> AuthorDate: Thu, 29 Mar 2018 15:43:01 +0100 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Sat, 31 Mar 2018 20:42:38 +0200
sched/cpufreq/schedutil: Fix error path mutex unlock This patch prevents the 'global_tunables_lock' mutex from being unlocked before being locked. This mutex is not locked if the sugov_kthread_create() function fails. Signed-off-by: Jules Maselbas <jules.masel...@arm.com> Acked-by: Peter Zijlstra <pet...@infradead.org> Cc: Chris Redpath <chris.redp...@arm.com> Cc: Dietmar Eggermann <dietmar.eggem...@arm.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Mike Galbraith <efa...@gmx.de> Cc: Patrick Bellasi <patrick.bell...@arm.com> Cc: Stephen Kyle <stephen.k...@arm.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: linux-kernel@vger.kernel.org Cc: n...@arm.com Link: http://lkml.kernel.org/r/20180329144301.38419-1-jules.masel...@arm.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- kernel/sched/cpufreq_schedutil.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index 7936f548e071..617c6741c525 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -625,10 +625,9 @@ fail: stop_kthread: sugov_kthread_stop(sg_policy); - -free_sg_policy: mutex_unlock(&global_tunables_lock); +free_sg_policy: sugov_policy_free(sg_policy); disable_fast_switch:
