diff -ruN linuxfirmwarekit-orig/thermal_trip/thermal_trip.sh linuxfirmwarekit/thermal_trip/thermal_trip.sh
--- linuxfirmwarekit-orig/thermal_trip/thermal_trip.sh	2007-02-08 22:02:47 +0300
+++ linuxfirmwarekit/thermal_trip/thermal_trip.sh	2007-02-14 20:35:26 +0300
@@ -189,7 +189,7 @@
 		fi
 
 		#check for difference
-		if ( [ "$NEW_THROT" -gt "$CUR_THROT" ] || [ "$NEW_CPUFREQ" -lt "$CUR_CPUFREQ" ] )
+		if ( [ -n "$CUR_THROT" ] && ( [ "$NEW_THROT" -gt "$CUR_THROT" ] || [ "$NEW_CPUFREQ" -lt "$CUR_CPUFREQ" ] ))
 		then
 			#yes, throttling is effective
 			case "$OUTPUTTYPE" in