device.c (d200781ef237a354d918ceff5cee350d88a93d42) device.c (730926c3b0998943654019f00296cf8e3b02277e)
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2016-2018 Intel Corporation. All rights reserved. */
3#include <linux/memremap.h>
4#include <linux/pagemap.h>
5#include <linux/module.h>
6#include <linux/device.h>
7#include <linux/pfn_t.h>
8#include <linux/cdev.h>

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440 cdev_del(cdev);
441}
442
443static void dev_dax_kill(void *dev_dax)
444{
445 kill_dev_dax(dev_dax);
446}
447
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2016-2018 Intel Corporation. All rights reserved. */
3#include <linux/memremap.h>
4#include <linux/pagemap.h>
5#include <linux/module.h>
6#include <linux/device.h>
7#include <linux/pfn_t.h>
8#include <linux/cdev.h>

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440 cdev_del(cdev);
441}
442
443static void dev_dax_kill(void *dev_dax)
444{
445 kill_dev_dax(dev_dax);
446}
447
448static int dev_dax_probe(struct device *dev)
448int dev_dax_probe(struct device *dev)
449{
450 struct dev_dax *dev_dax = to_dev_dax(dev);
451 struct dax_device *dax_dev = dev_dax->dax_dev;
452 struct resource *res = &dev_dax->region->res;
453 struct inode *inode;
454 struct cdev *cdev;
455 void *addr;
456 int rc;

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479 devm_remove_action(dev, dev_dax_percpu_exit, &dev_dax->ref);
480 percpu_ref_exit(&dev_dax->ref);
481 return PTR_ERR(addr);
482 }
483
484 inode = dax_inode(dax_dev);
485 cdev = inode->i_cdev;
486 cdev_init(cdev, &dax_fops);
449{
450 struct dev_dax *dev_dax = to_dev_dax(dev);
451 struct dax_device *dax_dev = dev_dax->dax_dev;
452 struct resource *res = &dev_dax->region->res;
453 struct inode *inode;
454 struct cdev *cdev;
455 void *addr;
456 int rc;

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479 devm_remove_action(dev, dev_dax_percpu_exit, &dev_dax->ref);
480 percpu_ref_exit(&dev_dax->ref);
481 return PTR_ERR(addr);
482 }
483
484 inode = dax_inode(dax_dev);
485 cdev = inode->i_cdev;
486 cdev_init(cdev, &dax_fops);
487 cdev->owner = dev->driver->owner;
487 if (dev->class) {
488 /* for the CONFIG_DEV_DAX_PMEM_COMPAT case */
489 cdev->owner = dev->parent->driver->owner;
490 } else
491 cdev->owner = dev->driver->owner;
488 cdev_set_parent(cdev, &dev->kobj);
489 rc = cdev_add(cdev, dev->devt, 1);
490 if (rc)
491 return rc;
492
493 rc = devm_add_action_or_reset(dev, dev_dax_cdev_del, cdev);
494 if (rc)
495 return rc;
496
497 run_dax(dax_dev);
498 return devm_add_action_or_reset(dev, dev_dax_kill, dev_dax);
499}
492 cdev_set_parent(cdev, &dev->kobj);
493 rc = cdev_add(cdev, dev->devt, 1);
494 if (rc)
495 return rc;
496
497 rc = devm_add_action_or_reset(dev, dev_dax_cdev_del, cdev);
498 if (rc)
499 return rc;
500
501 run_dax(dax_dev);
502 return devm_add_action_or_reset(dev, dev_dax_kill, dev_dax);
503}
504EXPORT_SYMBOL_GPL(dev_dax_probe);
500
501static int dev_dax_remove(struct device *dev)
502{
503 /* all probe actions are unwound by devm */
504 return 0;
505}
506
507static struct dax_device_driver device_dax_driver = {

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506static int dev_dax_remove(struct device *dev)
507{
508 /* all probe actions are unwound by devm */
509 return 0;
510}
511
512static struct dax_device_driver device_dax_driver = {

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