/*
 * UWB Multi-interface Controller device management.
 *
 * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
 *
 * This file is released under the GNU GPL v2.
 */
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/uwb/umc.h>

static void umc_device_release(struct device *dev)
{
	struct umc_dev *umc = to_umc_dev(dev);

	kfree(umc);
}

/**
 * umc_device_create - allocate a child UMC device
 * @parent: parent of the new UMC device.
 * @n:      index of the new device.
 *
 * The new UMC device will have a bus ID of the parent with '-n'
 * appended.
 */
struct umc_dev *umc_device_create(struct device *parent, int n)
{
	struct umc_dev *umc;

	umc = kzalloc(sizeof(struct umc_dev), GFP_KERNEL);
	if (umc) {
		dev_set_name(&umc->dev, "%s-%d", dev_name(parent), n);
		umc->dev.parent  = parent;
		umc->dev.bus     = &umc_bus_type;
		umc->dev.release = umc_device_release;

		umc->dev.dma_mask = parent->dma_mask;
	}
	return umc;
}
EXPORT_SYMBOL_GPL(umc_device_create);

/**
 * umc_device_register - register a UMC device
 * @umc: pointer to the UMC device
 *
 * The memory resource for the UMC device is acquired and the device
 * registered with the system.
 */
int umc_device_register(struct umc_dev *umc)
{
	int err;

	err = request_resource(umc->resource.parent, &umc->resource);
	if (err < 0) {
		dev_err(&umc->dev, "can't allocate resource range %pR: %d\n",
			&umc->resource, err);
		goto error_request_resource;
	}

	err = device_register(&umc->dev);
	if (err < 0)
		goto error_device_register;
	return 0;

error_device_register:
	put_device(&umc->dev);
	release_resource(&umc->resource);
error_request_resource:
	return err;
}
EXPORT_SYMBOL_GPL(umc_device_register);

/**
 * umc_device_unregister - unregister a UMC device
 * @umc: pointer to the UMC device
 *
 * First we unregister the device, make sure the driver can do it's
 * resource release thing and then we try to release any left over
 * resources. We take a ref to the device, to make sure it doesn't
 * disappear under our feet.
 */
void umc_device_unregister(struct umc_dev *umc)
{
	struct device *dev;
	if (!umc)
		return;
	dev = get_device(&umc->dev);
	device_unregister(&umc->dev);
	release_resource(&umc->resource);
	put_device(dev);
}
EXPORT_SYMBOL_GPL(umc_device_unregister);
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/atm?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>atm</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/atm/protocols.h?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>protocols.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='396bf4cd835e62d70fad4a03a8963e61f19021f2'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:16:23 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:16:23 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/atm/protocols.h?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>396bf4cd835e62d70fad4a03a8963e61f19021f2</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/atm/protocols.h?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>79ac8f33554260fea1a8d43e6f8c4c5460115f45</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/atm/protocols.h?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>net/atm/protocols.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/atm/protocols.h?id=d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c'>d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/atm/protocols.h?id=396bf4cd835e62d70fad4a03a8963e61f19021f2&amp;id2=d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/atm/protocols.h?id=7c2cf1c4615cc2f576d0604406cdf0065f00b83b'>7c2cf1c4615cc2f576d0604406cdf0065f00b83b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/atm/protocols.h?id=396bf4cd835e62d70fad4a03a8963e61f19021f2&amp;id2=7c2cf1c4615cc2f576d0604406cdf0065f00b83b'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6</div><div class='commit-msg'>Pull crypto fixes from Herbert Xu:

 - use-after-free in algif_aead

 - modular aesni regression when pcbc is modular but absent

 - bug causing IO page faults in ccp

 - double list add in ccp

 - NULL pointer dereference in qat (two patches)

 - panic in chcr

 - NULL pointer dereference in chcr

 - out-of-bound access in chcr

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: chcr - Fix key length for RFC4106
  crypto: algif_aead - Fix kernel panic on list_del
  crypto: aesni - Fix failure when pcbc module is absent
  crypto: ccp - Fix double add when creating new DMA command
  crypto: ccp - Fix DMA operations when IOMMU is enabled
  crypto: chcr - Check device is allocated before use
  crypto: chcr - Fix panic on dma_unmap_sg
  crypto: qat - zero esram only for DH85x devices
  crypto: qat - fix bar discovery for c62x
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>Diffstat</a> (limited to 'net/atm/protocols.h')</div><table summary='diffstat' class='diffstat'>