--- zzzz-none-000/linux-2.6.19.2/drivers/acpi/processor_perflib.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/drivers/acpi/processor_perflib.c	2007-01-11 07:38:19.000000000 +0000
@@ -83,8 +83,10 @@
 		goto out;
 
 	ppc = (unsigned int)pr->performance_platform_limit;
+	if (!ppc)
+		goto out;
 
-	if (ppc >= pr->performance->state_count)
+	if (ppc > pr->performance->state_count)
 		goto out;
 
 	cpufreq_verify_within_limits(policy, 0,