cpuidle: poll_state: Fix default time limit

Doug Smythies · rafaeljw · commit 1617971c6616 · 2019-01-30T22:57:42.000+01:00
The default time is declared in units of microsecnds, but is used as nanoseconds, resulting in significant accounting errors for idle state 0 time when all idle states deeper than 0 are disabled. Under these unusual conditions, we don't really care about the poll time limit anyhow. Fixes: 800fb34 ("cpuidle: poll_state: Disregard disable idle states") Signed-off-by: Doug Smythies <dsmythies@telus.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
@@ -21,7 +21,7 @@ static int __cpuidle poll_idle(struct cpuidle_device *dev,
 	local_irq_enable();
 	if (!current_set_polling_and_test()) {
 		unsigned int loop_count = 0;
-		u64 limit = TICK_USEC;
+		u64 limit = TICK_NSEC;
 		int i;
 
 		for (i = 1; i < drv->state_count; i++) {
