[ Upstream commit
8c7aa184281c01fc26f319059efb94725012921d ]
When calling thermal_add_hwmon_sysfs(), the device type is sanitized by
replacing '-' with '_'. However tz->type remains unsanitized. Thus
calling thermal_hwmon_lookup_by_type() returns no device. And if there is
no device, thermal_remove_hwmon_sysfs() fails with "hwmon device lookup
failed!".
The result is unregisted hwmon devices in the sysfs.
Fixes:
409ef0bacacf ("thermal_hwmon: Sanitize attribute name passed to hwmon")
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
thermal_hwmon_lookup_by_type(const struct thermal_zone_device *tz)
{
struct thermal_hwmon_device *hwmon;
thermal_hwmon_lookup_by_type(const struct thermal_zone_device *tz)
{
struct thermal_hwmon_device *hwmon;
+ char type[THERMAL_NAME_LENGTH];
mutex_lock(&thermal_hwmon_list_lock);
mutex_lock(&thermal_hwmon_list_lock);
- list_for_each_entry(hwmon, &thermal_hwmon_list, node)
- if (!strcmp(hwmon->type, tz->type)) {
+ list_for_each_entry(hwmon, &thermal_hwmon_list, node) {
+ strcpy(type, tz->type);
+ strreplace(type, '-', '_');
+ if (!strcmp(hwmon->type, type)) {
mutex_unlock(&thermal_hwmon_list_lock);
return hwmon;
}
mutex_unlock(&thermal_hwmon_list_lock);
return hwmon;
}
mutex_unlock(&thermal_hwmon_list_lock);
return NULL;
mutex_unlock(&thermal_hwmon_list_lock);
return NULL;