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thermal: validate input parameters

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Added sanity check to make sure that thermal zone
and cooling device exists.

Signed-off-by: Thomas Sujith <sujith.thomas@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Thomas Sujith 2008-02-15 00:58:50 -05:00 committed by Len Brown
parent 101142c37b
commit c751670902
1 changed files with 12 additions and 1 deletions
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13
drivers/thermal/thermal.c
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@ -306,12 +306,23 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
{
struct thermal_cooling_device_instance *dev;
struct thermal_cooling_device_instance *pos;
struct thermal_zone_device *pos1;
struct thermal_cooling_device *pos2;
int result;
if (trip >= tz->trips || (trip < 0 && trip != THERMAL_TRIPS_NONE))
return -EINVAL;
if (!tz || !cdev)
list_for_each_entry(pos1, &thermal_tz_list, node) {
if (pos1 == tz)
break;
}
list_for_each_entry(pos2, &thermal_cdev_list, node) {
if (pos2 == cdev)
break;
}
if (tz != pos1 || cdev != pos2)
return -EINVAL;
dev =