s390/ctc: cleanup drv attr usage

Rename attributes of the ctcm_group_driver. Also get rid of
the call to driver_remove_file.
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/net/ctcm_main.c

@@ -1786,17 +1786,15 @@ static ssize_t ctcm_driver_group_store(struct device_driver *ddrv,
 }
 static DRIVER_ATTR(group, 0200, NULL, ctcm_driver_group_store);
 
-static struct attribute *ctcm_group_attrs[] = {
+static struct attribute *ctcm_drv_attrs[] = {
 	&driver_attr_group.attr,
 	NULL,
 };
-
-static struct attribute_group ctcm_group_attr_group = {
-	.attrs = ctcm_group_attrs,
+static struct attribute_group ctcm_drv_attr_group = {
+	.attrs = ctcm_drv_attrs,
 };
-
-static const struct attribute_group *ctcm_group_attr_groups[] = {
-	&ctcm_group_attr_group,
+static const struct attribute_group *ctcm_drv_attr_groups[] = {
+	&ctcm_drv_attr_group,
 	NULL,
 };
 
@@ -1812,7 +1810,6 @@ static const struct attribute_group *ctcm_group_attr_groups[] = {
  */
 static void __exit ctcm_exit(void)
 {
-	driver_remove_file(&ctcm_group_driver.driver, &driver_attr_group);
 	ccwgroup_driver_unregister(&ctcm_group_driver);
 	ccw_driver_unregister(&ctcm_ccw_driver);
 	root_device_unregister(ctcm_root_dev);
@@ -1850,7 +1847,7 @@ static int __init ctcm_init(void)
 	ret = ccw_driver_register(&ctcm_ccw_driver);
 	if (ret)
 		goto ccw_err;
-	ctcm_group_driver.driver.groups = ctcm_group_attr_groups;
+	ctcm_group_driver.driver.groups = ctcm_drv_attr_groups;
 	ret = ccwgroup_driver_register(&ctcm_group_driver);
 	if (ret)
 		goto ccwgroup_err;