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path: root/drivers/thermal/thermal_sysfs.c
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Diffstat (limited to 'drivers/thermal/thermal_sysfs.c')
-rw-r--r--drivers/thermal/thermal_sysfs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index d8ff74a4338a..299c0fb16593 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -936,7 +936,11 @@ ssize_t weight_store(struct device *dev, struct device_attribute *attr,
return ret;
instance = container_of(attr, struct thermal_instance, weight_attr);
+
+ /* Don't race with governors using the 'weight' value */
+ mutex_lock(&instance->tz->lock);
instance->weight = weight;
+ mutex_unlock(&instance->tz->lock);
return count;
}