switch ->is_visible() to returning umode_t

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 2d3d728..1a92951 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -413,7 +413,7 @@
 	NULL
 };
 
-static mode_t jc42_attribute_mode(struct kobject *kobj,
+static umode_t jc42_attribute_mode(struct kobject *kobj,
 				  struct attribute *attr, int index)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c
index 20d1b2d..6914195 100644
--- a/drivers/hwmon/max1668.c
+++ b/drivers/hwmon/max1668.c
@@ -335,10 +335,10 @@
 	NULL
 };
 
-static mode_t max1668_attribute_mode(struct kobject *kobj,
+static umode_t max1668_attribute_mode(struct kobject *kobj,
 				     struct attribute *attr, int index)
 {
-	int ret = S_IRUGO;
+	umode_t ret = S_IRUGO;
 	if (read_only)
 		return ret;
 	if (attr == &sensor_dev_attr_temp1_max.dev_attr.attr ||
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index ece3aaf..2fc034a 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -464,7 +464,7 @@
 static SENSOR_DEVICE_ATTR(gpio2_alarm, S_IRUGO, get_alarm, NULL,
 			  MAX6650_ALRM_GPIO2);
 
-static mode_t max6650_attrs_visible(struct kobject *kobj, struct attribute *a,
+static umode_t max6650_attrs_visible(struct kobject *kobj, struct attribute *a,
 				    int n)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 0517a8f..c48381f 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -157,7 +157,7 @@
 		return sprintf(buf, "0\n");
 }
 
-static mode_t tmp421_is_visible(struct kobject *kobj, struct attribute *a,
+static umode_t tmp421_is_visible(struct kobject *kobj, struct attribute *a,
 				int n)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);