[PATCH v2] s390/char: Fix cdev_add usage

[Jean Delvare]

Function cdev_add does set cdev->dev, so there is no point in setting
it prior to calling this function.

Signed-off-by: Jean Delvare <jdelv...@suse.de>
Cc: Martin Schwidefsky <schwidef...@de.ibm.com>
Cc: Heiko Carstens <heiko.carst...@de.ibm.com>
---
Untested. Changes since v1 (2016-07-13):
 * Improved description
 * Added a few blank lines to make the code more readable

 drivers/s390/char/tape_class.c |    3 +--
 drivers/s390/char/vmlogrdr.c   |    4 ++--
 drivers/s390/char/vmur.c       |    4 ++--
 3 files changed, 5 insertions(+), 6 deletions(-)

--- linux-4.14-rc1.orig/drivers/s390/char/tape_class.c  2017-09-18 
10:53:53.361665102 +0200
+++ linux-4.14-rc1/drivers/s390/char/tape_class.c       2017-09-18 
10:58:10.630332486 +0200
@@ -68,9 +68,8 @@ struct tape_class_device *register_tape_
 
        tcd->char_device->owner = fops->owner;
        tcd->char_device->ops   = fops;
-       tcd->char_device->dev   = dev;
 
-       rc = cdev_add(tcd->char_device, tcd->char_device->dev, 1);
+       rc = cdev_add(tcd->char_device, dev, 1);
        if (rc)
                goto fail_with_cdev;
 
--- linux-4.14-rc1.orig/drivers/s390/char/vmlogrdr.c    2017-09-18 
10:53:53.361665102 +0200
+++ linux-4.14-rc1/drivers/s390/char/vmlogrdr.c 2017-09-18 11:01:02.044184499 
+0200
@@ -812,8 +812,8 @@ static int vmlogrdr_register_cdev(dev_t
        }
        vmlogrdr_cdev->owner = THIS_MODULE;
        vmlogrdr_cdev->ops = &vmlogrdr_fops;
-       vmlogrdr_cdev->dev = dev;
-       rc = cdev_add(vmlogrdr_cdev, vmlogrdr_cdev->dev, MAXMINOR);
+
+       rc = cdev_add(vmlogrdr_cdev, dev, MAXMINOR);
        if (!rc)
                return 0;
 
--- linux-4.14-rc1.orig/drivers/s390/char/vmur.c        2017-09-18 
10:53:53.361665102 +0200
+++ linux-4.14-rc1/drivers/s390/char/vmur.c     2017-09-18 11:09:13.111606357 
+0200
@@ -892,12 +892,12 @@ static int ur_set_online(struct ccw_devi
        }
 
        urd->char_device->ops = &ur_fops;
-       urd->char_device->dev = MKDEV(major, minor);
        urd->char_device->owner = ur_fops.owner;
 
-       rc = cdev_add(urd->char_device, urd->char_device->dev, 1);
+       rc = cdev_add(urd->char_device, MKDEV(major, minor), 1);
        if (rc)
                goto fail_free_cdev;
+
        if (urd->cdev->id.cu_type == READER_PUNCH_DEVTYPE) {
                if (urd->class == DEV_CLASS_UR_I)
                        sprintf(node_id, "vmrdr-%s", dev_name(&cdev->dev));

-- 
Jean Delvare
SUSE L3 Support