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/*
* Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/vmalloc.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/sizes.h>
#include <linux/ndctl.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/nd.h>
#include "nd.h"
static void free_data(struct nvdimm_drvdata *ndd)
{
if (!ndd)
return;
if (ndd->data && is_vmalloc_addr(ndd->data))
vfree(ndd->data);
else
kfree(ndd->data);
kfree(ndd);
}
static int nvdimm_probe(struct device *dev)
{
struct nvdimm_drvdata *ndd;
int rc;
ndd = kzalloc(sizeof(*ndd), GFP_KERNEL);
if (!ndd)
return -ENOMEM;
dev_set_drvdata(dev, ndd);
ndd->dev = dev;
rc = nvdimm_init_nsarea(ndd);
if (rc)
goto err;
rc = nvdimm_init_config_data(ndd);
if (rc)
goto err;
dev_dbg(dev, "config data size: %d\n", ndd->nsarea.config_size);
return 0;
err:
free_data(ndd);
return rc;
}
static int nvdimm_remove(struct device *dev)
{
struct nvdimm_drvdata *ndd = dev_get_drvdata(dev);
free_data(ndd);
return 0;
}
static struct nd_device_driver nvdimm_driver = {
.probe = nvdimm_probe,
.remove = nvdimm_remove,
.drv = {
.name = "nvdimm",
},
.type = ND_DRIVER_DIMM,
};
int __init nvdimm_init(void)
{
return nd_driver_register(&nvdimm_driver);
}
void nvdimm_exit(void)
{
driver_unregister(&nvdimm_driver.drv);
}
MODULE_ALIAS_ND_DEVICE(ND_DEVICE_DIMM);
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