1
Commit Graph

1021 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
9b4320b77b [media] Fix Kconfig errors due to two visible menus
Use the new visible Kconfig keyword to avoid producing error for two menus
that are visible only if Tuner/frontend customise options are enabled.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-11-22 11:27:36 -02:00
Jean Delvare
2c2742da1e [media] BZ#22292: dibx000_common: Restore i2c algo pointer
Commit a90f933507 accidentally removed
the piece of code setting the i2c algo pointer. Restore it.

That's what happens when you put two code statements on the same
line...

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-11-08 22:32:09 -02:00
Jarod Wilson
4cce492b01 [media] dvb: remove obsolete lgdt3304 driver
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-22 20:05:35 -02:00
Malcolm Priestley
352a587ccd [media] DiSEqC bug fixed for stv0288 based interfaces
Fixed problem with DiSEqC communication. The message was wrongly modulated,
so the DiSEqC switch was not work.

This patch fixes DiSEqC messages, simple tone burst and tone on/off.
I verified it with osciloscope against the DiSEqC documentation.

Interface: PCI DVB-S TV tuner TeVii S420
Kernel: 2.6.32-24-generic (UBUNTU 10.4)

Signed-off-by: Josef Pavlik <josef@pavlik.it>
Tested-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 07:55:58 -02:00
Jean Delvare
a90f933507 [media] i2c: Stop using I2C_CLASS_TV_DIGITAL
Detection class I2C_CLASS_TV_DIGITAL is set by many adapters but no
I2C device driver is setting it anymore, which means it can be
dropped. I2C devices on digital TV adapters are instantiated
explicitly these days, which is much better.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 07:54:26 -02:00
Antti Palosaari
9e35cd222b [media] af9013: cache some reg values to reduce reg reads
Demod + tuner specific RF AGC and IF AGC limit values are read from demod
memory in every signal strength query. Cache those to reduce I2C traffic.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:17:55 -02:00
Antti Palosaari
edb709b61a [media] af9013: optimize code size
Precalculate coefficients register values. This reduces text size around 300 bytes.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:17:54 -02:00
Mauro Carvalho Chehab
955e6ed843 [media] CodingStyle cleanup at s5h1432 and cx231xx
The patches received from the vendor contained a lot of CodingStyle
issues. Cleans the style issues reported by checkpatch.pl on
those drivers.

It is better to do such style fixes when merging a big set of
changes than latter. Of course, the better is to receive patches
already cleaned ;)

Acked-by: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:17:45 -02:00
Devin Heitmueller
bda7f4ee67 [media] s5h1432: fix codingstyle issues
Run Lindent and fix a few spacing issues.

This patch makes no functional change to the driver.

Signed-off-by: Devin Heitmueller <dheitmueller@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:17:15 -02:00
Palash Bandyopadhyay
47b75ec146 [media] s5h1432: Add new s5h1432 driver
Introduce a new driver for the s5h1432

Signed-off-by: Palash Bandyopadhyay <palash.bandyopadhyay@conexant.com>
Signed-off-by: Devin Heitmueller <dheitmueller@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:17:09 -02:00
Jean Delvare
f89ca6fae2 V4L/DVB: cx22702: Simplify cx22702_set_tps()
Code in function cx22702_set_tps() can be slightly simplified.
Apparently gcc was smart enough to optimize it anyway, but it can't
hurt to make the code more readable.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:10 -02:00
Jean Delvare
bdc6fad341 V4L/DVB: cx22702: Some things never change
The init sequence never changes so it can be marked const. Likewise,
cx22702_ops is a template and can thus be made read-only.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:10 -02:00
Jean Delvare
27f84acf0b V4L/DVB: cx22702: Avoid duplicating code in branches
Calling the same functions in if/else or switch/case branches is
inefficient. Refactor the code for a smaller binary and increased
readability.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:10 -02:00
Jean Delvare
5b9a6f37ab V4L/DVB: cx22702: Drop useless initializations to 0
These variables are either unconditionally set right afterward, or
already set to 0 by kzalloc.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:09 -02:00
Jean Delvare
24764107ec V4L/DVB: cx22702: Clean up register access functions
* Avoid temporary variables.
* Optimize success paths.
* Make error messages consistently verbose.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:09 -02:00
Hans Verkuil
978cff6bf3 V4L/DVB: au8522_decoder: remove obsolete v4l2-i2c-drv.h header
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:04 -02:00
Antti Palosaari
9b22edd4b0 V4L/DVB: af9013: optimize code size
Optimize af9013_set_coeff(). Move configuration values to own table.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:05:52 -02:00
Antti Palosaari
a4f31d0da5 V4L/DVB: af9013: add support for MaxLinear MxL5007T tuner
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:05:51 -02:00
Malcolm Priestley
be96624a38 V4L/DVB: STV0288 Incorrect bit sample for Vitterbi status
bit 3(LK) indicates that the Vstatus is locked.
Currently using bit 7(CF) which is usually present, results in early
aborted search in FEC_AUTO and missing channels.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:04:58 -02:00
Mauro Carvalho Chehab
9d10f3d7e7 V4L/DVB: ix2505v: make scripts/checkpatch.pl happy
WARNING: please, no space before tabs
+ *  ^IPOR = Power on Reset (VCC H=<2.2v L=>2.2v)$

WARNING: unnecessary whitespace before a quoted newline
+	deb_info("Frq=%d x=%d N=%d A=%d \n", frequency, x, N, A);

WARNING: please, no space before tabs
+^Ielse ^I^I/*frequency up to 2150000*/$

WARNING: unnecessary whitespace before a quoted newline
+	deb_info("Data 0=[%x%x%x%x] \n", data[0], data[1], data[2], data[3]);

WARNING: unnecessary whitespace before a quoted newline
+	deb_info("Data 2=[%x%x] \n", data[2], data[3]);

Cc: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:04:53 -02:00
Malcolm Priestley
1ae2c5893d V4L/DVB: Support for Sharp IX2505V (marked B0017) DVB-S silicon tuner
Tuner used in Sharp BS2F7VZ7395 dvbs module.
When ix2505v tuner is attached to stv0288 form this module.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:04:53 -02:00
lawrence rust
2e4e98e788 V4L/DVB: drivers/media: Make static data tables and strings const
Making static data const avoids allocation of additional r/w memory and
reduces initialisation time.  It also provides some additional opportunities
for compiler optimisations.

Signed-off-by: Lawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:04:52 -02:00
Julia Lawall
f277097929 V4L/DVB: drivers/media: Use available error codes
In each case, error codes are stored in rc, but the return value is always
0.  Return rc instead.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
local idexpression x;
constant C;
@@

if (...) { ...
  x = -C
  ... when != x
(
  return <+...x...+>;
|
  return NULL;
|
  return;
|
* return ...;
)
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:04:48 -02:00
Antti Palosaari
2158e5090b V4L/DVB: af9013: add support for tda18218 silicon tuner
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:04:42 -02:00
Olivier Grenie
970d14c6cc V4L/DVB: dib7000p: add disable sample and hold, and diversity delay parameter
This patch improves the overall driver performance in
diversity-reception scenarios.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 22:21:58 -03:00
Olivier Grenie
90e12cec70 V4L/DVB: dib7770: enable the current mirror
To improve performance on DiB7770-devices enabling the current mirror
is needed.

This patch adds an option to the dib7000p-driver to do that and it
creates a separate device-entry in dib0700-device to use those changes
on hardware which is using the DiB7770.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 22:21:57 -03:00
Guennadi Liakhovetski
b3fc1782c8 V4L/DVB: V4L: do not autoselect components on embedded systems
Tuner, DVB frontend and video helper chip drivers are by default
autoselected by their respective host cards, this, however, doesn't make
much sense on SoC-based systems. Disable autoselection on EMBEDDED
systems.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-08 23:43:02 -03:00
Antti Palosaari
c89f66f629 V4L/DVB: af9013: fix comments
Fix comments. It is demodulator driver not DVB USB -bridge.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:14 -03:00
Antti Palosaari
ce99efa53e V4L/DVB: af9013: output fw version as four digit long
Firmware version is four digit long. Print all four digits instead of
three digits used earlier.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:13 -03:00
Antti Palosaari
8af5e3813b V4L/DVB: af9013: af9013_read_status() refactoring
Function af9013_read_status() refactoring. Read lock bits in different
order to save count of register reads.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:12 -03:00
Antti Palosaari
737fabf051 V4L/DVB: af9013: program tuner before demodulator
Program tuner before demodulator in case of channel set. Earlier it was
programmed during demodulator programming. This seems to resolve weird
error where demodulator misses sometimes ability to gain lock.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:11 -03:00
Antti Palosaari
3b11f4e90d V4L/DVB: af9013: add support for firmware 5.1.0.0
Add support for new firmware version 5.1.0.0.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:09 -03:00
Andrew Morton
febe2ea10e V4L/DVB: "dib3000mc: reduce large stack usage" fix
s/ENODEV/ENOMEM, per Andreas.

This fix got lost when someone merged "dib3000mc: reduce large stack
usage".  Please don't lose fixes.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:42:59 -03:00
Christoph Egger
9059cd4440 V4L/DVB: remove obsolete conditionalizing on DVB_DIBCOM_DEBUG
As pointed by Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>,

The config Option DVB_DIBCOM_DEBUG was dropped while removing the dibusb
driver in favor of dvb-usb in 2005. However it remaind existant at some
places of the kernel config.

Instead of just removing the debug capability, the better is to just remove
the bad dependency, making the modprobe function always visible.

Thanks-to: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:42:46 -03:00
Ben Hutchings
7638699c25 V4L/DVB: lgs8gxx: remove firmware for lgs8g75
The recently added support for lgs8g75 included some 8051 machine code
without accompanying source code.  Replace this with use of the
firmware loader.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:42:45 -03:00
Guillaume Audirac
82751f5679 V4L/DVB: tda10048: clear the uncorrected packet registers when saturated
Use the register CLUNC to reset the CPTU registers (LSB & MSB) when they
saturate at 0xFFFF. Fixes as well a few register typos.

Signed-off-by: Guillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:35:39 -03:00
Guillaume Audirac
10ea89d03f V4L/DVB: tda10048: fix bitmask for the transmission mode
Add a missing bit for reading the transmission mode (2K/8K) in
tda10048_get_tps

Signed-off-by: Guillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:35:26 -03:00
Guillaume Audirac
814522394c V4L/DVB: tda10048: fix the uncomplete function tda10048_read_ber
Completes the bit-error-rate read function with the CBER register (before
Viterbi decoder). The returned value is 1e8*actual_ber to be positive.
Also includes some typo mistakes.

Signed-off-by: Guillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:35:13 -03:00
Julia Lawall
bd0db8c7ad V4L/DVB: drivers/media/dvb/frontends: remove duplicate structure field initialization
The read_status field is initialized twice to the same value.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier I, s, fld;
position p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@s@
identifier I, s, r.fld;
position r.p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@script:python@
p0 << r.p0;
fld << r.fld;
ps << s.p;
pr << r.p;
@@

if int(ps[0].line)<int(pr[0].line) or int(ps[0].column)<int(pr[0].column):
  cocci.print_main(fld,p0)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:29:18 -03:00
Michael Krufky
a5ba334cda V4L/DVB: lgdt3305: enable FE_HAS_SIGNAL hack for the lgdt3304 in QAM mode
The signal bit is unreliable on the DT3304 in QAM mode, so
set FE_HAS_SIGNAL based on 'cr_lock'

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:47:41 -03:00
Michael Krufky
40ff540f3e V4L/DVB: lgdt3305: update copyright date and MODULE_VERSION
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:47:19 -03:00
Michael Krufky
132631d07f V4L/DVB: lgdt3305: Jarod Wilson gets the credit for LGDT3304 support
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:47:07 -03:00
Michael Krufky
10952a716f V4L/DVB: lgdt3305: FIXME: verify & document the LGDT3304 registers
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:55 -03:00
Michael Krufky
d99a211822 V4L/DVB: lgdt3305: consolidate init functions
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:42 -03:00
Michael Krufky
241b0f4111 V4L/DVB: lgdt3305: re-write lgdt3304 ifbw hack in lgdt3305_rfagc_loop with FIXME
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:29 -03:00
Michael Krufky
5de82faec8 V4L/DVB: lgdt3305: update lgdt3305.h header to match the header in lgdt3305.c
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:11 -03:00
Michael Krufky
bf37d1354f V4L/DVB: lgdt3305: remove pointless function, lgdt3304_sleep
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:45:59 -03:00
Jarod Wilson
804258c95f V4L/DVB: dvb: add lgdt3304 support to lgdt3305 driver
There's a currently-unused lgdt3304 demod driver, which leaves a lot to
be desired as far as functionality. The 3304 is unsurprisingly quite
similar to the 3305, and empirical testing yeilds far better results
and more complete functionality by merging 3304 support into the 3305
driver. (For example, the current lgdt3304 driver lacks support for
signal strength, snr, ucblocks, etc., which we get w/the lgdt3305).

For the moment, not dropping the lgdt3304 driver, and its still up to
a given device's config setup to choose which demod driver to use, but
I'd suggest dropping the 3304 driver entirely.

As a follow-up to this patch, I've got another patch that adds support
for the KWorld PlusTV 340U (ATSC) em2870-based tuner stick, driving
its lgdt3304 demod via this lgdt3305 driver, which is what I used to
successfully test this patch with both VSB_8 and QAM_256 signals.

A few pieces are still a touch crude, but I think its a solid start,
as well as much cleaner and more feature-complete than the existing
lgdt3304 driver.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:45:34 -03:00
Julia Lawall
2ef17c9fc8 V4L/DVB: drivers/media: Use kzalloc
Use kzalloc rather than the combination of kmalloc and memset.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,size,flags;
statement S;
@@

-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
 if (x == NULL) S
-memset(x, 0, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01 01:23:16 -03:00
Guy Martin
e65f8c4e3e V4L/DVB: stv6110x: Fix kernel null pointer deref
The following OOPS happened when plugging two TT s2-1600:

[   96.521023] saa7146: register extension 'budget dvb'.
[   96.521052] budget dvb 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   96.521070] IRQ 16/: IRQF_DISABLED is not guaranteed on shared IRQs
[   96.521076] saa7146: found saa7146 @ mem ffffc90011182c00 (revision 1, irq 16) (0x13c2,0x101c).
[   96.521080] saa7146 (0): dma buffer size 192512
[   96.521081] DVB: registering new adapter (TT-Budget S2-1600 PCI)
[   96.539929] adapter has MAC addr = 00:d0:5c:cc:b0:a2
[   96.890149] stv6110x_attach: Attaching STV6110x
[   96.912516] DVB: registering adapter 0 frontend 0 (STV090x Multistandard)...
[   96.912600] budget dvb 0000:05:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[   96.912639] IRQ 17/: IRQF_DISABLED is not guaranteed on shared IRQs
[   96.912667] saa7146: found saa7146 @ mem ffffc90011314800 (revision 1, irq 17) (0x13c2,0x101c).
[   96.912673] saa7146 (1): dma buffer size 192512
[   96.912676] DVB: registering new adapter (TT-Budget S2-1600 PCI)
[   96.930893] adapter has MAC addr = 00:d0:5c:cc:b0:a3
[   97.233478] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[   97.233647] IP: [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x]
[   97.233753] PGD 3c16f067 PUD 3c383067 PMD 0
[   97.234147] CPU 0
[   97.234246] Pid: 5200, comm: modprobe Not tainted 2.6.33.2 #1 P5QSE/P5Q SE
[   97.234317] RIP: 0010:[<ffffffffa029c450>]  [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x]
[   97.234456] RSP: 0018:ffff88003c125c98  EFLAGS: 00010246
[   97.234461] RAX: ffffffffa029c460 RBX: ffff88003f84d800 RCX: ffff88003a19e140
[   97.234461] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[   97.234461] RBP: ffff88003f84d828 R08: 0000000000000002 R09: 0000000000000004
[   97.234461] R10: 0000000000000003 R11: 0000000000000010 R12: ffff88003f84d800
[   97.234461] R13: ffff88003f84d828 R14: ffff88003f84d828 R15: 0000000000000001
[   97.234461] FS:  00007f9f7253e6f0(0000) GS:ffff880001800000(0000) knlGS:0000000000000000
[   97.234461] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   97.234461] CR2: 0000000000000010 CR3: 000000003c382000 CR4: 00000000000006b0
[   97.234461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   97.234461] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   97.234461] Process modprobe (pid: 5200, threadinfo ffff88003c124000, task ffff88003e893ac0)
[   97.234461]  ffff88003f84d800 ffff88003f84d828 ffff88003f84d800 ffffffffa0292343
[   97.234461] <0> ffff88003f84d828 ffff88003ef70ae0 ffffffffa0280800 ffffffffa02934d2
[   97.234461] <0> ffffffffa0295260 0000000000000000 ffffffffa02948b0 ffff88003df79800
[   97.234461]  [<ffffffffa0292343>] ? stv090x_sleep+0x33/0x120 [stv090x]
[   97.234461]  [<ffffffffa02934d2>] ? stv090x_attach+0x1e2/0x73c [stv090x]
[   97.234461]  [<ffffffff81007cc5>] ? dma_generic_alloc_coherent+0xa5/0x160
[   97.234461]  [<ffffffffa026e1f5>] ? saa7146_init_one+0x7d5/0x910 [saa7146]
[   97.234461]  [<ffffffff811b84b2>] ? local_pci_probe+0x12/0x20
[   97.234461]  [<ffffffff811b87d0>] ? pci_device_probe+0x110/0x120
[   97.234461]  [<ffffffff81221788>] ? driver_probe_device+0x98/0x1b0
[   97.234461]  [<ffffffff81221933>] ? __driver_attach+0x93/0xa0
[   97.234461]  [<ffffffff812218a0>] ? __driver_attach+0x0/0xa0
[   97.234461]  [<ffffffff81220f18>] ? bus_for_each_dev+0x58/0x80
[   97.234461]  [<ffffffff8122079d>] ? bus_add_driver+0x14d/0x280
[   97.234461]  [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget]
[   97.234461]  [<ffffffff81221c29>] ? driver_register+0x79/0x170
[   97.234461]  [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget]
[   97.234461]  [<ffffffff811b8a48>] ? __pci_register_driver+0x58/0xe0
[   97.234461]  [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget]
[   97.234461]  [<ffffffff810001d5>] ? do_one_initcall+0x35/0x190
[   97.234461]  [<ffffffff81063d37>] ? sys_init_module+0xe7/0x260
[   97.234461]  [<ffffffff8100256b>] ? system_call_fastpath+0x16/0x1b
[   97.234461] RIP  [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x]
[   97.234461]  RSP <ffff88003c125c98>
[   97.240074] ---[ end trace b53ecbbbbef15e99 ]---

Prevents calling stv6110x_set_mode() if fe->tuner_priv is not defined,
in order to avoid the above bug.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01 01:21:50 -03:00