/*
 * C-Media CMI8788 driver for Asus Xonar cards
 *
 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
 *
 *
 *  This driver is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License, version 2.
 *
 *  This driver 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this driver; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include "xonar.h"

MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("Asus Virtuoso driver");
MODULE_LICENSE("GPL v2");
MODULE_SUPPORTED_DEVICE("{{Asus,AV66},{Asus,AV100},{Asus,AV200}}");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "card index");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "enable card");

static const struct pci_device_id xonar_ids[] = {
	{ OXYGEN_PCI_SUBID(0x1043, 0x8269) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x8275) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x82b7) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x8314) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x8327) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x834f) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x835c) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x835d) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x835e) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x838e) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x8428) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x8522) },
	{ OXYGEN_PCI_SUBID(0x1043, 0x85f4) },
	{ OXYGEN_PCI_SUBID_BROKEN_EEPROM },
	{ }
};
MODULE_DEVICE_TABLE(pci, xonar_ids);

static int get_xonar_model(struct oxygen *chip,
			   const struct pci_device_id *id)
{
	if (get_xonar_pcm179x_model(chip, id) >= 0)
		return 0;
	if (get_xonar_cs43xx_model(chip, id) >= 0)
		return 0;
	if (get_xonar_wm87x6_model(chip, id) >= 0)
		return 0;
	return -EINVAL;
}

static int xonar_probe(struct pci_dev *pci,
		       const struct pci_device_id *pci_id)
{
	static int dev;
	int err;

	if (dev >= SNDRV_CARDS)
		return -ENODEV;
	if (!enable[dev]) {
		++dev;
		return -ENOENT;
	}
	err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
			       xonar_ids, get_xonar_model);
	if (err >= 0)
		++dev;
	return err;
}

static struct pci_driver xonar_driver = {
	.name = KBUILD_MODNAME,
	.id_table = xonar_ids,
	.probe = xonar_probe,
	.remove = oxygen_pci_remove,
#ifdef CONFIG_PM_SLEEP
	.driver = {
		.pm = &oxygen_pci_pm,
	},
#endif
	.shutdown = oxygen_pci_shutdown,
};

module_pci_driver(xonar_driver);
ion 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>Heiner Kallweit &lt;hkallweit1@gmail.com&gt;</td><td class='right'>2016-10-03 21:21:42 +0200</td></tr>
<tr><th>committer</th><td>Jiri Kosina &lt;jkosina@suse.cz&gt;</td><td class='right'>2016-10-10 10:47:03 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net?id=3d1355b3cfad53feba76a73b052c757a7de7f4de'>3d1355b3cfad53feba76a73b052c757a7de7f4de</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net?id=3d1355b3cfad53feba76a73b052c757a7de7f4de'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3d1355b3cfad53feba76a73b052c757a7de7f4de'>6f80918c35bbdeed08941d7814920b0cff5c7748</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net?id=3d1355b3cfad53feba76a73b052c757a7de7f4de'>net</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net?id=bc75450cc3db3485db1e289fef8c1028ba38296a'>bc75450cc3db3485db1e289fef8c1028ba38296a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net?id=3d1355b3cfad53feba76a73b052c757a7de7f4de&amp;id2=bc75450cc3db3485db1e289fef8c1028ba38296a'>diff</a>)</td></tr></table>
<div class='commit-subject'>HID: hid-led: fix issue with transfer buffer not being dma capable</div><div class='commit-msg'>The hid-led driver works fine under 4.8.0, however with the next
kernel from today I get this:

------------[ cut here ]------------
WARNING: CPU: 0 PID: 2578 at drivers/usb/core/hcd.c:1584 usb_hcd_map_urb_for_dma+0x373/0x550 [usbcore]
transfer buffer not dma capable
Modules linked in: hid_led(+) usbhid vfat fat ir_sony_decoder iwlmvm led_class mac80211 snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal iwlwifi crc32c_intel snd_hda_codec_hdmi i2c_i801 i2c_smbus snd_hda_intel cfg80211 snd_hda_codec snd_hda_core snd_pcm r8169 snd_timer mei_me mii snd mei ir_lirc_codec lirc_dev nuvoton_cir rc_core btusb btintel bluetooth rfkill usb_storage efivarfs ipv6 ehci_pci ehci_hcd xhci_pci xhci_hcd usbcore usb_common ext4 jbd2 mbcache ahci libahci libata
CPU: 0 PID: 2578 Comm: systemd-udevd Not tainted 4.8.0-rc8-next-20161003 #1
Hardware name: ZOTAC ZBOX-CI321NANO/ZBOX-CI321NANO, BIOS B246P105 06/01/2015
 ffffc90003dbb7e0 ffffffff81280425 ffffc90003dbb830 0000000000000000
 ffffc90003dbb820 ffffffff8105b086 0000063003dbb800 ffff88006f374480
 0000000000000000 0000000000000000 0000000000000001 ffff880079544000
Call Trace:
 [&lt;ffffffff81280425&gt;] dump_stack+0x68/0x93
 [&lt;ffffffff8105b086&gt;] __warn+0xc6/0xe0
 [&lt;ffffffff8105b0ea&gt;] warn_slowpath_fmt+0x4a/0x50
 [&lt;ffffffffa0143a43&gt;] usb_hcd_map_urb_for_dma+0x373/0x550 [usbcore]
 [&lt;ffffffffa01441b6&gt;] usb_hcd_submit_urb+0x316/0x9c0 [usbcore]
 [&lt;ffffffff810bce80&gt;] ? rcu_read_lock_sched_held+0x40/0x80
 [&lt;ffffffff810e0043&gt;] ? module_assert_mutex_or_preempt+0x13/0x50
 [&lt;ffffffff810e0c07&gt;] ? __module_address+0x27/0xf0
 [&lt;ffffffffa01456e4&gt;] usb_submit_urb+0x2c4/0x520 [usbcore]
 [&lt;ffffffffa0145fea&gt;] usb_start_wait_urb+0x5a/0xe0 [usbcore]
 [&lt;ffffffffa014612c&gt;] usb_control_msg+0xbc/0xf0 [usbcore]
 [&lt;ffffffff810e0c07&gt;] ? __module_address+0x27/0xf0
 [&lt;ffffffffa079a724&gt;] usbhid_raw_request+0xa4/0x180 [usbhid]
 [&lt;ffffffffa07a93b1&gt;] hidled_recv+0x71/0xe0 [hid_led]
 [&lt;ffffffffa07a947d&gt;] thingm_init+0x2d/0x50 [hid_led]
 [&lt;ffffffffa07a969b&gt;] hidled_probe+0xcb/0x24a [hid_led]
 [&lt;ffffffff814d96f2&gt;] hid_device_probe+0xd2/0x150
 [&lt;ffffffff8146023d&gt;] driver_probe_device+0x1fd/0x2c0
 [&lt;ffffffff8146039a&gt;] __driver_attach+0x9a/0xa0
 [&lt;ffffffff81460300&gt;] ? driver_probe_device+0x2c0/0x2c0
 [&lt;ffffffff8145e25d&gt;] bus_for_each_dev+0x5d/0x90
 [&lt;ffffffff8145fa79&gt;] driver_attach+0x19/0x20
 [&lt;ffffffff8145f5ff&gt;] bus_add_driver+0x11f/0x220
 [&lt;ffffffffa07ac000&gt;] ? 0xffffffffa07ac000
 [&lt;ffffffff8146086b&gt;] driver_register+0x5b/0xd0
 [&lt;ffffffffa07ac000&gt;] ? 0xffffffffa07ac000
 [&lt;ffffffff814d83d1&gt;] __hid_register_driver+0x61/0xa0
 [&lt;ffffffffa07ac01e&gt;] hidled_driver_init+0x1e/0x20 [hid_led]
 [&lt;ffffffff81000408&gt;] do_one_initcall+0x38/0x150
 [&lt;ffffffff810bce80&gt;] ? rcu_read_lock_sched_held+0x40/0x80
 [&lt;ffffffff81194ca0&gt;] ? kmem_cache_alloc_trace+0x1d0/0x230
 [&lt;ffffffff811342f9&gt;] do_init_module+0x5a/0x1cb
 [&lt;ffffffff810e3862&gt;] load_module+0x1e42/0x2530
 [&lt;ffffffff810e0990&gt;] ? __symbol_put+0x50/0x50
 [&lt;ffffffff810dfc50&gt;] ? show_coresize+0x30/0x30
 [&lt;ffffffff811ad650&gt;] ? kernel_read_file+0x100/0x190
 [&lt;ffffffff811ad794&gt;] ? kernel_read_file_from_fd+0x44/0x70
 [&lt;ffffffff810e415a&gt;] SYSC_finit_module+0xba/0xc0
 [&lt;ffffffff810e4179&gt;] SyS_finit_module+0x9/0x10
 [&lt;ffffffff815e082a&gt;] entry_SYSCALL_64_fastpath+0x18/0xad
---[ end trace c9e6ea27003ecf9e ]---

Fix this by using a kmalloc'ed buffer when calling hid_hw_raw_request.

Signed-off-by: Heiner Kallweit &lt;hkallweit1@gmail.com&gt;
Reviewed-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3d1355b3cfad53feba76a73b052c757a7de7f4de'>Diffstat</a> (limited to 'net')</div><table summary='diffstat' class='diffstat'>