Messages in this thread Patch in this message | | | From | Eduardo Valentin <> | Subject | [PATCH 08/15] thermal: sysfs: improve locking of emul_temp_store() | Date | Mon, 30 May 2016 23:31:29 -0700 |
| |
emul_temp_store locks only for setting temperature, but it must lock also for calls to tz.ops.
Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <edubezval@gmail.com> --- drivers/thermal/thermal_sysfs.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index 234eb18..32ffadf 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -340,13 +340,12 @@ emul_temp_store(struct device *dev, struct device_attribute *attr, if (kstrtoint(buf, 10, &temperature)) return -EINVAL; - if (!tz->ops->set_emul_temp) { - mutex_lock(&tz->lock); + mutex_lock(&tz->lock); + if (!tz->ops->set_emul_temp) tz->emul_temperature = temperature; - mutex_unlock(&tz->lock); - } else { + else ret = tz->ops->set_emul_temp(tz, temperature); - } + mutex_unlock(&tz->lock); if (!ret) thermal_zone_device_update(tz); -- 2.1.4
| |