PM / Suspend: Off by one in pm_suspend()

In enter_state() we use "state" as an offset for the pm_states[]
array.  The pm_states[] array only has PM_SUSPEND_MAX elements so
this test is off by one.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org

kernel/power/suspend.c

@@ -319,7 +319,7 @@ int enter_state(suspend_state_t state)
 int pm_suspend(suspend_state_t state)
 {
 	int ret;
-	if (state > PM_SUSPEND_ON && state <= PM_SUSPEND_MAX) {
+	if (state > PM_SUSPEND_ON && state < PM_SUSPEND_MAX) {
 		ret = enter_state(state);
 		if (ret) {
 			suspend_stats.fail++;