thermal: fix potential out-of-bounds memory access
[linux-2.6.git] / drivers / thermal / thermal_sys.c
index 0165cf4..da2c104 100644 (file)
@@ -598,7 +598,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
        temp->tz = tz;
        hwmon->count++;
 
-       snprintf(temp->temp_input.name, THERMAL_NAME_LENGTH,
+       snprintf(temp->temp_input.name, sizeof(temp->temp_input.name),
                 "temp%d_input", hwmon->count);
        temp->temp_input.attr.attr.name = temp->temp_input.name;
        temp->temp_input.attr.attr.mode = 0444;
@@ -611,7 +611,8 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
        if (tz->ops->get_crit_temp) {
                unsigned long temperature;
                if (!tz->ops->get_crit_temp(tz, &temperature)) {
-                       snprintf(temp->temp_crit.name, THERMAL_NAME_LENGTH,
+                       snprintf(temp->temp_crit.name,
+                                sizeof(temp->temp_crit.name),
                                "temp%d_crit", hwmon->count);
                        temp->temp_crit.attr.attr.name = temp->temp_crit.name;
                        temp->temp_crit.attr.attr.mode = 0444;