diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index d3ef1d7ad6ee61f07b4790876683ad2d8d92c163..477b05afaf8116204e18767c06b3301815611700 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -35,10 +35,10 @@ static ssize_t show_available_governors(struct device *dev,
 
 	mutex_lock(&cpuidle_lock);
 	list_for_each_entry(tmp, &cpuidle_governors, governor_list) {
-		if (i >= (ssize_t) ((PAGE_SIZE/sizeof(char)) -
-				    CPUIDLE_NAME_LEN - 2))
+		if (i >= (ssize_t) (PAGE_SIZE - (CPUIDLE_NAME_LEN + 2)))
 			goto out;
-		i += scnprintf(&buf[i], CPUIDLE_NAME_LEN, "%s ", tmp->name);
+
+		i += scnprintf(&buf[i], CPUIDLE_NAME_LEN + 1, "%s ", tmp->name);
 	}
 
 out: