1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 07c7d216c89d..f7ca8c55956b 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1030,6 +1030,9 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
                 dev->states[i].desc[0] = '\0';
         }
 
+        if (max_cstate == 0)
+                max_cstate = 1;
+
         for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
                 cx = &pr->power.states[i];
                 state = &dev->states[count];