diff options
| author | Zhuguangqing <zhuguangqing@xiaomi.com> | 2020-11-06 12:22:43 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-11-12 14:23:35 +0300 |
| commit | 236761f19a4f373354f1dcf399b57753f1f4b871 (patch) | |
| tree | e0f5d7e36fdeed1b80c3f4dda9363fba348bc919 /drivers/thermal/cpufreq_cooling.c | |
| parent | 030a48b0f6ce393d78b8d33debb1e2043b8cc156 (diff) | |
| download | linux-236761f19a4f373354f1dcf399b57753f1f4b871.tar.xz | |
thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed
If state has not changed successfully and we updated cpufreq_state,
next time when the new state is equal to cpufreq_state (not changed
successfully last time), we will return directly and miss a
freq_qos_update_request() that should have been.
Fixes: 5130802ddbb1 ("thermal: cpu_cooling: Switch to QoS requests for freq limits")
Cc: v5.4+ <stable@vger.kernel.org> # v5.4+
Signed-off-by: Zhuguangqing <zhuguangqing@xiaomi.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201106092243.15574-1-zhuguangqing83@gmail.com
Diffstat (limited to 'drivers/thermal/cpufreq_cooling.c')
| -rw-r--r-- | drivers/thermal/cpufreq_cooling.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c index cc2959f22f01..612f063c1cfc 100644 --- a/drivers/thermal/cpufreq_cooling.c +++ b/drivers/thermal/cpufreq_cooling.c @@ -438,13 +438,11 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev, if (cpufreq_cdev->cpufreq_state == state) return 0; - cpufreq_cdev->cpufreq_state = state; - frequency = get_state_freq(cpufreq_cdev, state); ret = freq_qos_update_request(&cpufreq_cdev->qos_req, frequency); - if (ret > 0) { + cpufreq_cdev->cpufreq_state = state; cpus = cpufreq_cdev->policy->cpus; max_capacity = arch_scale_cpu_capacity(cpumask_first(cpus)); capacity = frequency * max_capacity; |