The cpufreq-based invariance is enabled in cpufreq_register_driver(), but
never disabled after registration fails. Move the invariance initialization
to where all other initializations have been successfully done to solve
this problem.
Fixes: 874f63531064 ("cpufreq: report whether cpufreq supports Frequency Invariance (FI)")
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
---
drivers/cpufreq/cpufreq.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 6ea39181e832..eb713d116c34 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2940,15 +2940,6 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
cpufreq_driver = driver_data;
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
- /*
- * Mark support for the scheduler's frequency invariance engine for
- * drivers that implement target(), target_index() or fast_switch().
- */
- if (!cpufreq_driver->setpolicy) {
- static_branch_enable_cpuslocked(&cpufreq_freq_invariance);
- pr_debug("supports frequency invariance");
- }
-
if (driver_data->setpolicy)
driver_data->flags |= CPUFREQ_CONST_LOOPS;
@@ -2979,6 +2970,15 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
hp_online = ret;
ret = 0;
+ /*
+ * Mark support for the scheduler's frequency invariance engine for
+ * drivers that implement target(), target_index() or fast_switch().
+ */
+ if (!cpufreq_driver->setpolicy) {
+ static_branch_enable_cpuslocked(&cpufreq_freq_invariance);
+ pr_debug("supports frequency invariance");
+ }
+
pr_debug("driver %s up and running\n", driver_data->name);
goto out;
--
2.33.0