From: Thomas Sujith <sujith.thomas@intel.com>
Date: Fri, 15 Feb 2008 05:58:50 +0000 (-0500)
Subject: thermal: validate input parameters
X-Git-Tag: v2.6.25-rc3~95^2^6~5
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c751670902c3dd9abbed279170a832e6a1e6cf94;p=karo-tx-linux.git

thermal: validate input parameters

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>
---

diff --git a/drivers/thermal/thermal.c b/drivers/thermal/thermal.c
index e782b3e7fcdb..5f1d318f0574 100644
--- a/drivers/thermal/thermal.c
+++ b/drivers/thermal/thermal.c
@@ -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 =