hwmon: Fix unchecked return status, batch 1

hwmon: Fix unchecked return status, batch 1

Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 23 insertions, 16 deletions

diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c
index a85869393bab..72b0e2d8650c 100644
--- a/drivers/hwmon/smsc47b397.c
+++ b/drivers/hwmon/smsc47b397.c
@@ -176,9 +176,6 @@ sysfs_temp(2);
 sysfs_temp(3);
 sysfs_temp(4);
 
-#define device_create_file_temp(client, num) \
-        device_create_file(&client->dev, &dev_attr_temp##num##_input)
-
 /* FAN: 1 RPM/bit
    REG: count of 90kHz pulses / revolution */
 static int fan_from_reg(u16 reg)
@@ -205,8 +202,22 @@ sysfs_fan(2);
 sysfs_fan(3);
 sysfs_fan(4);
 
-#define device_create_file_fan(client, num) \
-        device_create_file(&client->dev, &dev_attr_fan##num##_input)
+static struct attribute *smsc47b397_attributes[] = {
+        &dev_attr_temp1_input.attr,
+        &dev_attr_temp2_input.attr,
+        &dev_attr_temp3_input.attr,
+        &dev_attr_temp4_input.attr,
+        &dev_attr_fan1_input.attr,
+        &dev_attr_fan2_input.attr,
+        &dev_attr_fan3_input.attr,
+        &dev_attr_fan4_input.attr,
+
+        NULL
+};
+
+static const struct attribute_group smsc47b397_group = {
+        .attrs = smsc47b397_attributes,
+};
 
 static int smsc47b397_detach_client(struct i2c_client *client)
 {
@@ -214,6 +225,7 @@ static int smsc47b397_detach_client(struct i2c_client *client)
         int err;
 
         hwmon_device_unregister(data->class_dev);
+        sysfs_remove_group(&client->dev.kobj, &smsc47b397_group);
 
         if ((err = i2c_detach_client(client)))
                 return err;
@@ -268,24 +280,19 @@ static int smsc47b397_detect(struct i2c_adapter *adapter)
         if ((err = i2c_attach_client(new_client)))
                 goto error_free;
 
+        if ((err = sysfs_create_group(&new_client->dev.kobj, &smsc47b397_group)))
+                goto error_detach;
+
         data->class_dev = hwmon_device_register(&new_client->dev);
         if (IS_ERR(data->class_dev)) {
                 err = PTR_ERR(data->class_dev);
-                goto error_detach;
+                goto error_remove;
         }
 
-        device_create_file_temp(new_client, 1);
-        device_create_file_temp(new_client, 2);
-        device_create_file_temp(new_client, 3);
-        device_create_file_temp(new_client, 4);
-
-        device_create_file_fan(new_client, 1);
-        device_create_file_fan(new_client, 2);
-        device_create_file_fan(new_client, 3);
-        device_create_file_fan(new_client, 4);
-
         return 0;
 
+error_remove:
+        sysfs_remove_group(&new_client->dev.kobj, &smsc47b397_group);
 error_detach:
         i2c_detach_client(new_client);
 error_free: