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thermal: sysfs: Fix trip_point_hyst_store() 

After commit 2e38a2a981 ("thermal/core: Add a generic thermal_zone_set_trip()
function") updating a trip point temperature doesn't actually work,
because the value supplied by user space is subsequently overwritten
with the current trip point hysteresis value.

Fix this by changing the code to parse the number string supplied by
user space after retrieving the current trip point data from the
thermal zone.

Also drop a redundant tab character from the code in question.

Fixes: 2e38a2a981 ("thermal/core: Add a generic thermal_zone_set_trip() function")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 6.3+ <stable@vger.kernel.org> # 6.3+
This commit is contained in:
Rafael J. Wysocki 2023-09-15 20:35:33 +02:00
parent ce9ecca023
commit ea3105672c
1 changed files with 5 additions and 4 deletions
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9
drivers/thermal/thermal_sysfs.c
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@ -185,9 +185,6 @@ trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip_id) != 1)
return -EINVAL;
if (kstrtoint(buf, 10, &trip.hysteresis))
return -EINVAL;
mutex_lock(&tz->lock);
if (!device_is_registered(dev)) {
@ -198,7 +195,11 @@ trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
ret = __thermal_zone_get_trip(tz, trip_id, &trip);
if (ret)
goto unlock;
ret = kstrtoint(buf, 10, &trip.hysteresis);
if (ret)
goto unlock;
ret = thermal_zone_set_trip(tz, trip_id, &trip);
unlock:
mutex_unlock(&tz->lock);