---
 drivers/cpuidle/driver.c |   18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -8,6 +8,8 @@
  * This code is licenced under the GPL.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/mutex.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -152,7 +154,7 @@ static void cpuidle_setup_broadcast_time
  * __cpuidle_driver_init - initialize the driver's internal data
  * @drv: a valid pointer to a struct cpuidle_driver
  */
-static int __cpuidle_driver_init(struct cpuidle_driver *drv)
+static void __cpuidle_driver_init(struct cpuidle_driver *drv)
 {
 	int i;
 
@@ -195,15 +197,13 @@ static int __cpuidle_driver_init(struct
 			s->exit_latency = div_u64(s->exit_latency_ns, NSEC_PER_USEC);
 
 		/*
-		 * Ensure that the exit latency of a CPU idle state does not
-		 * exceed its target residency which is assumed in cpuidle in
-		 * multiple places.
+		 * Warn if the exit latency of a CPU idle state exceeds its
+		 * target residency which is assumed to never happen in cpuidle
+		 * in multiple places.
 		 */
 		if (s->exit_latency_ns > s->target_residency_ns)
-			return -EINVAL;
+			pr_warn("Idle state %d target residency too low\n", i);
 	}
-
-	return 0;
 }
 
 /**
@@ -233,9 +233,7 @@ static int __cpuidle_register_driver(str
 	if (cpuidle_disabled())
 		return -ENODEV;
 
-	ret = __cpuidle_driver_init(drv);
-	if (ret)
-		return ret;
+	__cpuidle_driver_init(drv);
 
 	ret = __cpuidle_set_driver(drv);
 	if (ret)