linux-stable.git/drivers/leds, branch linux-2.6.36.y

leds: fix bug with reading NAS SS4200 dmi code

2010-12-09T21:33:21+00:00

commit 50d431e8a15701b599c98afe2b464eb33c952477 upstream.

While running randconfg with ktest.pl I stumbled upon this bug:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000003
  IP: [] strstr+0x39/0x86
  PGD 0
  Oops: 0000 [#1] SMP
  last sysfs file:
  CPU 0
  Modules linked in:

  Pid: 1, comm: swapper Not tainted 2.6.37-rc1-test+ #6 DG965MQ/
  RIP: 0010:[]  [] strstr+0x39/0x86
  RSP: 0018:ffff8800797cbd80  EFLAGS: 00010213
  RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffffffffffff
  RDX: 0000000000000000 RSI: ffffffff82eb7ac9 RDI: 0000000000000003
  RBP: ffff8800797cbda0 R08: ffff880000000003 R09: 0000000000030725
  R10: ffff88007d294c00 R11: 0000000000014c00 R12: 0000000000000020
  R13: ffffffff82eb7ac9 R14: ffffffffffffffff R15: ffffffff82eb7b08
  FS:  0000000000000000(0000) GS:ffff88007d200000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  CR2: 0000000000000003 CR3: 0000000002a1d000 CR4: 00000000000006f0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  Process swapper (pid: 1, threadinfo ffff8800797ca000, task ffff8800797d0000)
  Stack:
   00000000000000ba ffffffff82eb7ac9 ffffffff82eb7ab8 00000000000000ba
   ffff8800797cbdf0 ffffffff81e2050f ffff8800797cbdc0 00000000815f913b
   ffff8800797cbe00 ffffffff82eb7ab8 0000000000000000 0000000000000000
  Call Trace:
   [] dmi_matches+0x117/0x154
   [] dmi_check_system+0x3d/0x8d
   [] ? nas_gpio_init+0x0/0x2c8
   [] nas_gpio_init+0x24/0x2c8
   [] ? wm8350_led_init+0x0/0x20
   [] ? nas_gpio_init+0x0/0x2c8
   [] do_one_initcall+0xab/0x1b2
   [] kernel_init+0x248/0x331
   [] kernel_thread_helper+0x4/0x10
   [] ? kernel_init+0x0/0x331

Found that the nas_led_whitelist dmi_system_id structure array had no
NULL end delimiter, causing the dmi_check_system() loop to read an
undefined entry.

Signed-off-by: Steven Rostedt 
Acked-by: Dave Hansen 
Acked-by: Richard Purdie 
Acked-by: Arjan van de Ven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

leds: leds-ns2: fix locking

2010-09-20T02:43:42+00:00

This patch replace all the lock functions with the irq safe variant.
The ns2_led_{set,get}_mode() functions must be safe in all context.

For example, the trigger timer call led_set_brightness() in a softirq
context.

Signed-off-by: Simon Guinot 
Signed-off-by: Nicolas Pitre

Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6

2010-08-12T16:11:31+00:00

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  mmc_spi: Fix unterminated of_match_table
  of/sparc: fix build regression from of_device changes
  of/device: Replace struct of_device with struct platform_device

of/device: Replace struct of_device with struct platform_device

2010-08-06T15:25:50+00:00

of_device is just an alias for platform_device, so remove it entirely.  Also
replace to_of_device() with to_platform_device() and update comment blocks.

This patch was initially generated from the following semantic patch, and then
edited by hand to pick up the bits that coccinelle didn't catch.

@@
@@
-struct of_device
+struct platform_device

Signed-off-by: Grant Likely 
Reviewed-by: David S. Miller

leds: Remove owner field from attribute initialization in bd2802 driver

2010-08-05T20:53:35+00:00

Signed-off-by: Guenter Roeck 
Acked-by: Tejun Heo 
Signed-off-by: Greg Kroah-Hartman

leds: add LED driver for Network Space v2 LEDs

2010-07-17T02:02:00+00:00

This patch add a LED class driver for the dual-GPIO LEDs found on the
Network Space v2 board (and parents). This include Internet Space v2,
Network Space (Max) v2 and d2 Network v2 boards.

This dual-GPIO LED is wired to a CPLD and can blink in relation with the
SATA activity. The driver expose this capability through a "sata" sysfs
attribute.

Signed-off-by: Simon Guinot 
Signed-off-by: Nicolas Pitre

i2c: Remove all i2c_set_clientdata(client, NULL) in drivers

2010-06-03T09:33:58+00:00

I2C drivers can use the clientdata-pointer to point to private data. As I2C
devices are not really unregistered, but merely detached from their driver, it
used to be the drivers obligation to clear this pointer during remove() or a
failed probe(). As a couple of drivers forgot to do this, it was agreed that it
was cleaner if the i2c-core does this clearance when appropriate, as there is
no guarantee for the lifetime of the clientdata-pointer after remove() anyhow.
This feature was added to the core with commit
e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 to fix the faulty drivers.

As there is no need anymore to clear the clientdata-pointer, remove all current
occurrences in the drivers to simplify the code and prevent confusion.

Signed-off-by: Wolfram Sang 
Acked-by: Mark Brown 
Acked-by: Greg Kroah-Hartman 
Acked-by: Richard Purdie 
Acked-by: Dmitry Torokhov 
Signed-off-by: Jean Delvare

leds: Fix leds-gpio openfirmware compile issue

2010-05-28T07:35:27+00:00

Fix a compile issue when openfirmware is enabled from commit
2146325df2c2640059a9e064890c30c6e259b458.

Signed-off-by: Richard Purdie

leds: Kconfig fixes

2010-05-28T07:35:27+00:00

Soekris net5501 is x86 only and cleanup some undeeded dependencies

Signed-off-by: Richard Purdie

leds: Add mc13783 LED support

2010-05-26T12:07:56+00:00

This add basic led support for Freescale MC13783 PMIC.

Signed-off-by: Philippe Rétornaz 
Signed-off-by: Richard Purdie