[PATCH] switchtec: cleanup cdev init

[Logan Gunthorpe <logang@deltatee.com>]

Per a suggestion from Greg Kroah-Hartman [1], don't set the cdev's
kobject parent. This allows us to use device_register instead of init
and add.

[1] https://lkml.org/lkml/2017/2/10/370
---
 drivers/pci/switch/switchtec.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 82bfd18..014eaec 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -1222,24 +1222,23 @@ static struct switchtec_dev *stdev_create(struct pci_dev *pdev)
 		return ERR_PTR(minor);
 
 	dev = &stdev->dev;
-	device_initialize(dev);
 	dev->devt = MKDEV(MAJOR(switchtec_devt), minor);
-	dev->class = switchtec_class;
-	dev->parent = &pdev->dev;
-	dev->groups = switchtec_device_groups;
-	dev->release = stdev_release;
-	dev_set_name(dev, "switchtec%d", minor);
 
 	cdev = &stdev->cdev;
 	cdev_init(cdev, &switchtec_fops);
 	cdev->owner = THIS_MODULE;
-	cdev->kobj.parent = &dev->kobj;
 
 	rc = cdev_add(&stdev->cdev, dev->devt, 1);
 	if (rc)
 		goto err_cdev;
 
-	rc = device_add(dev);
+	dev->class = switchtec_class;
+	dev->parent = &pdev->dev;
+	dev->groups = switchtec_device_groups;
+	dev->release = stdev_release;
+	dev_set_name(dev, "switchtec%d", minor);
+
+	rc = device_register(dev);
 	if (rc) {
 		cdev_del(&stdev->cdev);
 		put_device(dev);
-- 
2.1.4