/*
 * Apple Onboard Audio driver for Toonie codec
 *
 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
 *
 * GPL v2, can be found in COPYING.
 *
 *
 * This is a driver for the toonie codec chip. This chip is present
 * on the Mac Mini and is nothing but a DAC.
 */
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/slab.h>
MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("toonie codec driver for snd-aoa");

#include "../aoa.h"
#include "../soundbus/soundbus.h"


#define PFX "snd-aoa-codec-toonie: "

struct toonie {
	struct aoa_codec	codec;
};
#define codec_to_toonie(c) container_of(c, struct toonie, codec)

static int toonie_dev_register(struct snd_device *dev)
{
	return 0;
}

static struct snd_device_ops ops = {
	.dev_register = toonie_dev_register,
};

static struct transfer_info toonie_transfers[] = {
	/* This thing *only* has analog output,
	 * the rates are taken from Info.plist
	 * from Darwin. */
	{
		.formats = SNDRV_PCM_FMTBIT_S16_BE |
			   SNDRV_PCM_FMTBIT_S24_BE,
		.rates = SNDRV_PCM_RATE_32000 |
			 SNDRV_PCM_RATE_44100 |
			 SNDRV_PCM_RATE_48000 |
			 SNDRV_PCM_RATE_88200 |
			 SNDRV_PCM_RATE_96000,
	},
	{}
};

static int toonie_usable(struct codec_info_item *cii,
			 struct transfer_info *ti,
			 struct transfer_info *out)
{
	return 1;
}

#ifdef CONFIG_PM
static int toonie_suspend(struct codec_info_item *cii, pm_message_t state)
{
	/* can we turn it off somehow? */
	return 0;
}

static int toonie_resume(struct codec_info_item *cii)
{
	return 0;
}
#endif /* CONFIG_PM */

static struct codec_info toonie_codec_info = {
	.transfers = toonie_transfers,
	.sysclock_factor = 256,
	.bus_factor = 64,
	.owner = THIS_MODULE,
	.usable = toonie_usable,
#ifdef CONFIG_PM
	.suspend = toonie_suspend,
	.resume = toonie_resume,
#endif
};

static int toonie_init_codec(struct aoa_codec *codec)
{
	struct toonie *toonie = codec_to_toonie(codec);

	/* nothing connected? what a joke! */
	if (toonie->codec.connected != 1)
		return -ENOTCONN;

	if (aoa_snd_device_new(SNDRV_DEV_CODEC, toonie, &ops)) {
		printk(KERN_ERR PFX "failed to create toonie snd device!\n");
		return -ENODEV;
	}

	if (toonie->codec.soundbus_dev->attach_codec(toonie->codec.soundbus_dev,
						     aoa_get_card(),
						     &toonie_codec_info, toonie)) {
		printk(KERN_ERR PFX "error creating toonie pcm\n");
		snd_device_free(aoa_get_card(), toonie);
		return -ENODEV;
	}

	return 0;
}

static void toonie_exit_codec(struct aoa_codec *codec)
{
	struct toonie *toonie = codec_to_toonie(codec);

	if (!toonie->codec.soundbus_dev) {
		printk(KERN_ERR PFX "toonie_exit_codec called without soundbus_dev!\n");
		return;
	}
	toonie->codec.soundbus_dev->detach_codec(toonie->codec.soundbus_dev, toonie);
}

static struct toonie *toonie;

static int __init toonie_init(void)
{
	toonie = kzalloc(sizeof(struct toonie), GFP_KERNEL);

	if (!toonie)
		return -ENOMEM;

	strlcpy(toonie->codec.name, "toonie", sizeof(toonie->codec.name));
	toonie->codec.owner = THIS_MODULE;
	toonie->codec.init = toonie_init_codec;
	toonie->codec.exit = toonie_exit_codec;

	if (aoa_codec_register(&toonie->codec)) {
		kfree(toonie);
		return -EINVAL;
	}

	return 0;
}

static void __exit toonie_exit(void)
{
	aoa_codec_unregister(&toonie->codec);
	kfree(toonie);
}

module_init(toonie_init);
module_exit(toonie_exit);
ptions</b><form method='get'><input type='hidden' name='id' value='07cd12945551b63ecb1a349d50a6d69d1d6feb4a'/><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>Tejun Heo &lt;tj@kernel.org&gt;</td><td class='right'>2017-01-26 16:47:28 -0500</td></tr>
<tr><th>committer</th><td>Tejun Heo &lt;tj@kernel.org&gt;</td><td class='right'>2017-01-26 16:47:28 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/util/call-path.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>07cd12945551b63ecb1a349d50a6d69d1d6feb4a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/util/call-path.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>75f65eba7eac9277971082a2d5a4cf1370562c0c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/perf/util/call-path.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>tools/perf/util/call-path.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/util/call-path.h?id=7ce7d89f48834cefece7804d38fc5d85382edf77'>7ce7d89f48834cefece7804d38fc5d85382edf77</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/util/call-path.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a&amp;id2=7ce7d89f48834cefece7804d38fc5d85382edf77'>diff</a>)</td></tr></table>
<div class='commit-subject'>cgroup: don't online subsystems before cgroup_name/path() are operational</div><div class='commit-msg'>While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out
cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems
before the new cgroup is associated with it kernfs_node.  This is fine
for cgroup proper but cgroup_name/path() depend on the associated
kernfs_node and if a subsystem makes the new cgroup_subsys_state
visible, which they're allowed to after onlining, it can lead to NULL
dereference.

The current code performs cgroup creation and subsystem onlining in
cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems
visible afterwards.  There's no reason to online the subsystems early
and we can simply drop cgroup_apply_control_enable() call from
cgroup_create() so that the subsystems are onlined and made visible at
the same time.

Signed-off-by: Tejun Heo &lt;tj@kernel.org&gt;
Reported-by: Konstantin Khlebnikov &lt;khlebnikov@yandex-team.ru&gt;
Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") 
Cc: stable@vger.kernel.org # v4.6+
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>Diffstat</a> (limited to 'tools/perf/util/call-path.h')</div><table summary='diffstat' class='diffstat'>