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| author | Jules Maselbas <jules.maselbas@arm.com> | 2018-03-29 15:43:01 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-03-31 20:42:38 +0200 |
| commit | 1b5d43cfb69759d8ef8d30469cea31d0c037aed5 (patch) | |
| tree | 8845496f34fe5c69de448b1dd703d0d9bdc50d34 /kernel | |
| parent | b5dbc28762fd3fd40ba76303be0c7f707826f982 (diff) | |
| download | linux-1b5d43cfb69759d8ef8d30469cea31d0c037aed5.tar.gz linux-1b5d43cfb69759d8ef8d30469cea31d0c037aed5.tar.bz2 linux-1b5d43cfb69759d8ef8d30469cea31d0c037aed5.zip | |
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.maselbas@arm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Chris Redpath <chris.redpath@arm.com>
Cc: Dietmar Eggermann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Patrick Bellasi <patrick.bellasi@arm.com>
Cc: Stephen Kyle <stephen.kyle@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: nd@arm.com
Link: http://lkml.kernel.org/r/20180329144301.38419-1-jules.maselbas@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/cpufreq_schedutil.c | 3 |
1 files changed, 1 insertions, 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: |