V4L/DVB (8331): cx18: Add locking for struct cx18 GPIO state variables

cx18: Add locking for struct cx18 GPIO state variables in
anticpation of adding IR microcontroller reset support for
use by external IR modules.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8326): sms1xxx: fix missing #include <linux/types.h>

Fix the build error:

smscoreapi.c:689: error: 'uintptr_t' undeclared

Thanks to Peter Schlaf for reporting this.

Cc: Peter Schlaf <peter.schlaf@web.de>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8322): sms1xxx: fix improper usage of asm/foo.h

Fix the following warnings generated by checkpatch.pl:

WARNING: Use #include <linux/io.h> instead of <asm/io.h>
 251: FILE: linux/drivers/media/dvb/siano/smscoreapi.c:30:
+#include <asm/io.h>

WARNING: Use #include <linux/scatterlist.h> instead of <asm/scatterlist.h>
 1566: FILE: linux/drivers/media/dvb/siano/smscoreapi.h:29:
+#include <asm/scatterlist.h>

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8319): saa7134: Add support for analog only ASUSTeK P7131

saa7134: add a separate entry for the ASUSTeK P7131 analog only
         and do some eeprom detection to escape from the TVFM7135
         with the same PCI subsystem on auto detection.

Signed-off-by: Hermann Pitton <hermann-pitton@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8318): OV7670: don't reject unsupported settings

For VIDIOC_G_FMT/VIDIOC_TRY_FMT, the V4L2 API spec states:
"Drivers should not return an error code unless the input is ambiguous"
"Very simple, inflexible devices may even ignore all input and always
return the default parameters."
"When the requested buffer type is not supported drivers return an
EINVAL error code."
i.e. returning errors for unsupported fields is bad, and it's ok to
unconditionally overwrite user-requested settings

This patch makes ov7670 meet that behaviour, and brings it in line with
other drivers e.g. stk-webcam. It also fixes compatibility with (unpatched)
gstreamer.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8317): Sensoray 2255 V4l driver checkpatch fixes

This patch fixes some coding style issues.
It also fixes a NULL de-reference on driver unload.
The permissions for the module parameters were changed to 0644.

Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8316): bt819: Fix a debug message

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8315): zr36067: Delete dead code

This has been commented out for years, it's about time to get rid of
it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8313): sms1xxx: add support for Hauppauge WinTV-Nova-T-MiniStick

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8312): sms1xxx: add firmware filenames to board properties for stellar and nova

Assign the following firmware filenames:

sms1xxx-stellar-dvbt-01.fw
sms1xxx-nova-a-dvbt-01.fw
sms1xxx-nova-b-dvbt-01.fw

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8311): sms1xxx: support device-specific firmware filenames on stellar usb1 sticks

Add the capability to define device-specific firmware filenames for the SMS1010,
with a mechanism to fall back to the generic firmware if the device-specific
firmware is not present.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8310): sms1xxx: remove kmutex_t typedef

remove typedef struct mutex kmutex_t
fix one line > 80 columns

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8309): sms1xxx: fix OOPS on 64 bit kernels due to a bad cast

Fix the following build warning:

smscoreapi.c: In function 'smscore_detect_mode':
smscoreapi.c:689: warning: cast from pointer to integer of different size
smscoreapi.c:689: warning: cast to pointer from integer of different size
smscoreapi.c: In function 'smscore_set_device_mode':
smscoreapi.c:820: warning: cast from pointer to integer of different size
smscoreapi.c:820: warning: cast to pointer from integer of different size

...and fix the following OOPS on 64bit kernels:

[  717.263667] usb 6-4: new high speed USB device using ehci_hcd and address 2
[  717.396386] usb 6-4: configuration #1 chosen from 1 choice
[  717.473650] Unable to handle kernel paging request at 0000000000c02000 RIP:
[  717.473657]  [<ffffffff88db9edc>] :sms1xxx:smscore_set_device_mode+0x22c/0x4a0
[  717.473669] PGD 3c6f7067 PUD 3d484067 PMD 0
[  717.473674] Oops: 0002 [1] SMP
[  717.473678] CPU 0
[Modules linked in snipped]
[  717.473773] Pid: 8380, comm: modprobe Tainted: P        2.6.24-16-generic #1
[  717.473776] RIP: 0010:[<ffffffff88db9edc>]  [<ffffffff88db9edc>] :sms1xxx:smscore_set_device_mode+0x22c/0x4a0
[  717.473784] RSP: 0018:ffff81003d495ba8  EFLAGS: 00010206
[  717.473786] RAX: ffff81003d8cd8d0 RBX: ffff81003d8cd800 RCX: ffff81003d8cd8d0
[  717.473788] RDX: 0000000000000008 RSI: ffff81003f080070 RDI: ffff81003d8cd800
[  717.473791] RBP: 0000000000000004 R08: ffff81003ec0104b R09: ffffffffffffffff
[  717.473793] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000c02000
[  717.473796] R13: 00000000fffffff4 R14: ffff810000c02000 R15: ffff81003d8cd878
[  717.473799] FS:  00007f70a680f6e0(0000) GS:ffffffff805b0000(0000) knlGS:0000000000000000
[  717.473801] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  717.473804] CR2: 0000000000c02000 CR3: 000000003c68b000 CR4: 00000000000006e0
[  717.473806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  717.473809] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  717.473812] Process modprobe (pid: 8380, threadinfo ffff81003d494000, task ffff81003d2fc000)
[  717.473814] Stack:  ffff81003d8cd800 ffff81003d8cd800 0000000000000000 ffff81003c6d8000
[  717.473820]  ffff81003dcac800 0000000000000008 ffffc20000787bb0 ffffffff88dba16c
[  717.473825]  ffff81003dcac800 000000000000000a 0000000000000000 ffffffff88dbb2fa
[  717.473829] Call Trace:
[  717.473866]  [<ffffffff88dba16c>] :sms1xxx:smscore_start_device+0x1c/0xb0
[  717.473885]  [<ffffffff88dbb2fa>] :sms1xxx:smsusb_probe+0x29a/0x670
[  717.473929]  [<ffffffff88dbaca0>] :sms1xxx:smsusb_sendrequest+0x0/0x30
[  717.473965]  [<ffffffff804614d9>] mutex_lock+0x9/0x20
[  717.473998]  [<ffffffff8806c42e>] :usbcore:usb_autopm_do_device+0x8e/0x130
[  717.474040]  [<ffffffff8806d33a>] :usbcore:usb_probe_interface+0xda/0x160
[  717.474067]  [<ffffffff803b9f4c>] driver_probe_device+0x9c/0x1b0
[  717.474091]  [<ffffffff803ba219>] __driver_attach+0xc9/0xd0
[  717.474107]  [<ffffffff803ba150>] __driver_attach+0x0/0xd0
[  717.474115]  [<ffffffff803b918d>] bus_for_each_dev+0x4d/0x80
[  717.474156]  [<ffffffff803b959c>] bus_add_driver+0xac/0x220
[  717.474203]  [<ffffffff8806cde9>] :usbcore:usb_register_driver+0xa9/0x120
[  717.474232]  [<ffffffff88dbb00b>] :sms1xxx:smsusb_register+0x1b/0x70
[  717.474243]  [<ffffffff88dba50c>] :sms1xxx:smscore_module_init+0x7c/0xb0
[  717.474253]  [<ffffffff80263b6e>] sys_init_module+0x18e/0x1a90
[  717.474426]  [<ffffffff8020c37e>] system_call+0x7e/0x83
[  717.474490]
[  717.474491]
[  717.474492] Code: 66 41 c7 04 24 9c 02 41 c6 44 24 02 00 4c 89 e6 41 c6 44 24
[  717.474506] RIP  [<ffffffff88db9edc>] :sms1xxx:smscore_set_device_mode+0x22c/0x4a0
[  717.474513]  RSP <ffff81003d495ba8>
[  717.474515] CR2: 0000000000c02000
[  717.474521] ---[ end trace 52d9c6f207be106a ]---

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8308): sms1xxx: Provide option to support Siano default usb ids

Provide an option to enable / disable support for Siano's default usb ids.

This allows the support for Siano's USB IDs to be disabled, so that Siano's
external driver can be used, instead.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8307): sms1xxx: change smsusb_driver.name to sms1xxx

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8306): sms1xxx: log firmware download process by default

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8305): sms1xxx: fix warning: format '%d' expects type 'int', but argument x has type 'size_t'

Fix the following 64bit build warning:

make[2]: Entering directory `/usr/src/linux-headers-2.6.24-16-generic'
  CC [M]  smscoreapi.o
smscoreapi.c: In function 'smscore_load_firmware_from_file':
smscoreapi.c:604: warning: format '%d' expects type 'int', but argument 4 has type 'size_t'
  CC [M]  smsusb.o
smsusb.c: In function 'smsusb1_load_firmware':
smsusb.c:216: warning: format '%d' expects type 'int', but argument 3 has type 'size_t'
smsusb.c:223: warning: format '%d' expects type 'int', but argument 4 has type 'size_t'

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8303): sms1xxx: update MODULE_DESCRIPTION

set MODULE_DESCRIPTION to "Driver for the Siano SMS1XXX USB dongle"

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8302): sms1xxx: fix Siano board names

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8301): sms1xxx: add capability to define device-specific firmware filenames

Add the capability to define device-specific firmware filenames for the SMS1150,
with a mechanism to fall back to the generic firmware if the device-specific
firmware is not present.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8300): sms1xxx: simplify smsusb_init_device switch..case block

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8299): sms1xxx: mark functions static

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8298): sms1xxx: remove redundant __func__ in sms_err macro

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8297): sms1xxx: remove old printk macros

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8296): sms1xxx: always show error messages

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8295): sms1xxx: add debug module option, to enable debug messages

All dmesg spam turned off by default, for now.  Values for debug:

(info=1, adv=2 (or-able)

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8294): sms1xxx: move message formatting into printk macros

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8293): sms1xxx: create printk macros

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8292): sms1xxx: add code to allow device-specific functionality

Set board ID in the usb_device_id table's driver_info field.
Use board name when registering the dvb adapter.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8291): sms1xxx: change default_mode to 4

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8290): sms1xxx: small cleanup

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8289): sms1xxx: remove #if LINUX_VERSION_CODE checks

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8288): sms1xxx: more cleanups

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8287): sms1xxx: fix WARNING: unnecessary cast may hide bugs

fix the following checkpatch.pl warning:

WARNING: unnecessary cast may hide bugs,
see http://c-faq.com/malloc/mallocnocast.html

596: FILE: linux/drivers/media/dvb/siano/smscoreapi.c:540:
+ msg = (struct SmsMsgHdr_ST *) kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA);

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8286): sms1xxx: remove typedefs

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8285): sms1xxx: more 80-column cleanups

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8284): sms1xxx: fix WARNING: printk() should include KERN_ facility level

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8283): sms1xxx: 80-column cleanups

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8282): sms1xxx: more codingstyle cleanups

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8281): sms1xxx: remove INT / UINT typedefs

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8280): sms1xxx: more codingstyle cleanups

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8279): sms1xxx: #define usb vid:pid's

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8278): sms1xxx: more codingstyle cleanups

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8277): sms1xxx: update latest siano drop to 1.2.17

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8276): sms1xxx: codingstyle cleanup: "(foo*)" should be "(foo *)"

ERROR: "(foo*)" should be "(foo *)"

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8275): sms1xxx: codingstyle cleanup: "foo* bar"/"foo * bar" should be "foo *bar"

ERROR: "foo* bar" should be "foo *bar"
ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8274): sms1xxx: build cleanup after driver relocation

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8273): sms1xxx: replace __FUNCTION__ with __func__

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8272): sms1xxx: move driver from media/mdtv/ to media/dvb/siano/

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8271): sms1xxx: usbvid table

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8270): sms1xxx: header include cleanups and unexport symbols

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8269): sms1xxx: copyrights

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8268): sms1xxx: usb cleanup

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8267): sms1xxx: Makefile cleanup

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8266): sms1xxx: merge modules

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8265): sms1xxx: Kconfig / Makefile cleanups

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8264): sms1xxx: remove smstypes.h

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8263): sms1xxx: merge ksyms

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8262): sms1xxx: remove smschar.o

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8261): sms1xxx: remove smsnet.o

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8260): sms1xxx: build fixes

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8259): sms1xxx: pass adapter_nr into dvb_register_adapter

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8258): add support for SMS1010 and SMS1150 based digital television devices

initial driver drop, provided by Siano Mobile Silicon, Inc.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8257): uvcvideo: Fix possible AB-BA deadlock with videodev_lock and open_mutex

The uvcvideo driver's uvc_v4l2_open() method is called from videodev's
video_open() function, which means it is called with the videodev_lock
mutex held.  uvc_v4l2_open() then takes uvc_driver.open_mutex to check
dev->state and avoid racing against a device disconnect, which means
that open_mutex must nest inside videodev_lock.

However uvc_disconnect() takes the open_mutex around setting
dev->state and also around putting its device reference.  However, if
uvc_disconnect() ends up dropping the last reference, it will call
uvc_delete(), which calls into the videodev code to unregister its
device, and this will end up taking videodev_lock.  This opens a
(unlikely in practice) window for an AB-BA deadlock and also causes a
lockdep warning because of the lock misordering.

Fortunately there is no apparent reason to hold open_mutex when doing
kref_put() in uvc_disconnect(): if uvc_v4l2_open() runs before the
state is set to UVC_DEV_DISCONNECTED, then it will take another
reference to the device and kref_put() won't call uvc_delete; if
uvc_v4l2_open() runs after the state is set, it will run before
uvc_delete(), see the state, and return immediately -- uvc_delete()
does uvc_unregister_video() (and hence video_unregister_device(),
which is synchronized with videodev_lock) as its first thing, so there
is no risk of use-after-free in uvc_v4l2_open().

Bug diagnosed based on a lockdep warning reported by Romano Giannetti
<romano@dea.icai.upcomillas.es>.

Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8256): uvc/uvc_v4l2.c: suppress uninitialized var warning

drivers/media/video/uvc/uvc_v4l2.c: In function `uvc_v4l2_mmap':
drivers/media/video/uvc/uvc_v4l2.c:1035: warning: 'buffer' might be used uninitialized in this function

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8254): uvcvideo : Add support for Asus F9GS integrated webcam

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8253): gspca: fix warnings on x86_64

/home/v4l/master/v4l/gspca.c: In function 'gspca_frame_add':
/home/v4l/master/v4l/gspca.c:222: warning: format '%d' expects type 'int', but argument 2 has type 'long int'
/home/v4l/master/v4l/gspca.c: In function 'dev_read':
/home/v4l/master/v4l/gspca.c:1568: warning: format '%d' expects type 'int', but argument 2 has type 'size_t'
/home/v4l/master/v4l/gspca.c:1618: warning: format '%d' expects type 'int', but argument 3 has type 'size_t'

Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8252): buf-dma-sg.c: avoid clearing memory twice

1) Remove a useless initialisation of 'i'

2) Avoid clearing the memory allocated twice (once in 'kcalloc', once
   in 'sg_init_table')

3) Remove a test that can never trigger.  The function returns NULL in
   such a case, so we know that at this point 'pages[0]' != NULL

Signed-off-by: Christophe Jaillet <jaillet.christophe@wanadoo.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8251): ttusb: use simple_read_from_buffer()()

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8249): Fix pointer cast warnings in the ivtv framebuffer driver

Fix casts of pointers to integers of different sizes in the ivtv framebuffer
driver.

These were introduced in patch 38eb6ba5b8487d15b020fe391d324edd2b659b03.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8246): tvaudio: Stop I2C driver ID abuse

The tvaudio driver is using "official" I2C device IDs for internal
purpose. There must be some historical reason behind this but anyway,
it shouldn't do that. As the stored values are never used, the easiest
way to fix the problem is simply to remove them altogether.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8245): ovcamchip: Delete stray I2C bus ID

I2C_HW_SMBUS_OVFX2 is referenced in ovcamchip_core.c, but no bus uses
this driver ID, so we can remove the reference. As far as I can see,
the Cypress FX2 webcam is handled by a different driver (dvb-usb).

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8244): saa7134: add support for AVerMedia M103

The following patch updates saa7134 driver to add support for AVerMedia
M103 MiniPCI DVB-T Hybrid card.

Signed-off-by: Massimo Piccioni <alsa@piccio.org>
[mchehab@infradead.org: fixed merge conflicts and a small codingstyle]
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8236): cx23885: add support for new revision of FusionHDTV7 Dual Express

The new revision of this board uses the same pci subsystem id as the first
revision, but uses a S5H1411 demodulator instead of the S5H1409.

In the case of the FusionHDTV7 Dual Express,
if s5h1409_attach fails, try s5h1411_attach.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8235): uvcvideo : Add support for Medion Akoya Mini E1210 integrated webcam

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8234): uvcvideo: Make input device support optional

UVC devices can report button events. The uvcvideo driver depends on
CONFIG_INPUT to report events to the input layer. This patch removes the hard
dependency by introducing a new CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV option.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8232): gspca: Change the USERPTR mechanism.

main:     Change the packet copy mechanism for userptr.
          Cannot do reqbufs ioctl when already done and count != 0.
          Accept count < frame size in read().

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8231): gspca: Do not declare the webcams declared by other drivers.

etoms:    Do not declare the webcams declared by the driver et61x251.
sonixb, sonixj:
          Do not declare the webcams declared by the driver sn9c102.
zc3xx:    Do not declare the webcams declared by the driver zc0301.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

v4l-dvb: remove legacy checks to allow support for kernels < 2.6.10

Also remove some blank lines that were used to split compat code at -devel
tree.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8209): uvcvideo: Don't free URB buffers on suspend.

All submitted URBs must be killed at suspend time, but URB buffers don't have
to be freed. Avoiding a free on suspend/reallocate on resume lowers the presure
on system memory.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8208): uvcvideo: Use GFP_NOIO when allocating memory during resume

The swap device might still be asleep, so memory allocated in the resume
handler must use GFP_NOIO. Thanks to Oliver Neukum for catching and reporting
this bug.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8207): uvcvideo: Fix a buffer overflow in format descriptor parsing

Thanks to Oliver Neukum for catching and reporting this bug.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8205): gspca: Size of frame header adjusted according to sn9c10x in sonixb.

Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8204): gspca: Cleanup code.

spca508:  Cleanup code.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8202): gspca: PAC207 frames may be not compressed.

pac207:   Set the sizeimage to the max value for 352x288.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8201): gspca: v4l2_pix_format in each subdriver.

main:     Parameter comp_fac removed.
main, pac207:
          get_buff_size op removed.
(all)     v4l2_pix_format in each subdriver.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8199): gspca: Compile warnings about NULL ptr.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8198): gspca: Frame decoding errors when PAC207 in full daylight.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8197): gspca: pac207 frames no more decoded in the subdriver.

videodev2: New pixfmt
pac207:   Remove the specific decoding.
main:     get_buff_size operation added for the subdriver.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8196): gspca: Correct sizeimage in vidioc_s/try/g_fmt_cap

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8195): gspca: Input buffer overwritten in spca561 + cleanup code.

spca561:  Input buffer may be changed on reg write.
(all sd): Cleanup code, 'const' added.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8194): gspca: Fix the format of the low resolution mode of spca561.

The low (half) res modes of the spca561 are not spca561 compressed, but are
raw bayer, this patches fixes this and adds a PIX_FMT define for the GBRG
bayer format used by the spca561 in low res mode.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8193): gspca: Input buffer may be changed on reg write.

Done for conex, etoms, pac7311, sonixj, t613 and tv8532.
Code cleanup for some other subdrivers.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8192): Try to fix a reg_w() bug

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8191): gspca: Make CONFIG_VIDEO_ADV_DEBUG actually work.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8189): cx18: Use correct GPIO pin for resetting Xceive 3028 tuner on Yuan MPC718

Change the Yuan MPC718 cards entry to use the correct GPIO pin for resetting
the Xceive 3028 tuner.  Thanks to Brian Hope <brian@hopefamily.info> for
taking the time and figuring out which pin to use.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8188): cx18: Add missing reset recovery delay in cx18-i2c.c

cx18: Add a missing reset recovery delay in cx18-i2c.c after
the final deassert.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8186): dib0700: add support for Hauppauge Nova-TD Stick 52009

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8184): spca508: Add Clone Digital Webcam 11043

Added ID vendor/product for Clone Digital Webcam 11043.
Thanks to Ivan Brasil Fuzzer <ivan@fuzzer.com.br> for testing and data collection.

Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

V4L/DVB (8183): cxusb: select MEDIA_TUNER_MXL5005S if !DVB_FE_CUSTOMISE

After adding support for AVerTVHD Volar, DVB_USB_CXUSB must
select MEDIA_TUNER_MXL5005S if !DVB_FE_CUSTOMISE

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>