Matt Porter eb4a5346e7 hwrng: bcm2835 - fix oops when rng h/w is accessed during registration ...

Commit "d9e7972 hwrng: add randomness to system from rng sources"
exposed a bug in the bcm2835-rng driver resulting in boot failure
on Raspberry Pi due to the following oops:

[   28.261523] BUG: soft lockup - CPU#0 stuck for 23s! [swapper:1]
[   28.271058]
[   28.275958] CPU: 0 PID: 1 Comm: swapper Not tainted 3.14.0+ #11
[   28.285374] task: db480000 ti: db484000 task.ti: db484000
[   28.294279] PC is at bcm2835_rng_read+0x28/0x48
[   28.302276] LR is at hwrng_register+0x1a8/0x238
.
.
.

The RNG h/w is not completely initialized and enabled before
hwrng_register() is called and so the bcm2835_rng_read() fails.
Fix this by making the warmup/enable writes before registering
the RNG source with the hwrng core.

Signed-off-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

2014-04-11 11:31:13 +08:00

..

agp

drivers/char: delete non-required instances of include <linux/init.h>

2014-02-07 15:10:19 -08:00

hw_random

hwrng: bcm2835 - fix oops when rng h/w is accessed during registration

2014-04-11 11:31:13 +08:00

ipmi

drivers/char: delete non-required instances of include <linux/init.h>

2014-02-07 15:10:19 -08:00

mwave

drivers/char: delete non-required instances of include <linux/init.h>

2014-02-07 15:10:19 -08:00

pcmcia

tty: synclink: avoid sleep_on race

2014-01-07 17:05:21 -08:00

tpm

drivers/char: delete non-required instances of include <linux/init.h>

2014-02-07 15:10:19 -08:00

xilinx_hwicap

char: hwicap: Remove unnecessary dev_set_drvdata()

2013-10-03 16:03:31 -07:00

apm-emulation.c

apm-emulation: add hibernation APM events to support suspend2disk

2014-01-07 13:50:28 +01:00

applicom.c

applicom: use correct array offset

2013-03-15 12:23:48 -07:00

applicom.h

…

bfin-otp.c

…

bsr.c

drivers: clean-up prom.h implicit includes

2013-10-09 20:04:04 -05:00

ds1302.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

ds1620.c

ds1620: single_open() leak

2013-05-05 00:11:29 -04:00

dsp56k.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

dtlk.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

efirtc.c

rtc: single_open() leaks

2013-05-05 00:12:29 -04:00

generic_nvram.c

…

genrtc.c

rtc: single_open() leaks

2013-05-05 00:12:29 -04:00

hangcheck-timer.c

…

hpet.c

ACPI: Clean up inclusions of ACPI header files

2013-12-07 01:03:14 +01:00

i8k.c

Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

2014-01-29 18:56:27 -08:00

Kconfig

raw: set range for MAX_RAW_DEVS

2014-02-07 08:29:46 -08:00

lp.c

char: Int overflow in lp_do_ioctl().

2013-12-18 16:39:54 -08:00

Makefile

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2014-01-29 20:49:12 -08:00

mbcs.c

char: remove use of __devinitconst

2012-11-21 12:55:19 -08:00

mbcs.h

…

mem.c

/dev/mem: handle out-of-bounds read/write

2014-02-15 11:51:02 -08:00

misc.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-11-13 15:34:18 +09:00

mmtimer.c

drivers/char/mmtimer.c: Remove useless kfree

2012-09-26 13:20:40 -07:00

msm_smd_pkt.c

treewide: Fix typos in printk

2013-12-19 15:10:49 +01:00

mspec.c

char: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT

2013-05-21 10:07:54 -07:00

nsc_gpio.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

nvram.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

nwbutton.c

char: nwbutton: open-code interruptible_sleep_on

2014-01-08 15:29:52 -08:00

nwbutton.h

…

nwflash.c

Merge branch 'late/fixes' into fixes

2012-10-07 07:22:32 -07:00

pc8736x_gpio.c

pc8736x_gpio: use platform_device_unregister in pc8736x_gpio_cleanup()

2012-10-24 15:52:29 -07:00

ppdev.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ps3flash.c

ps3flash: switch to generic_file_llseek_size()

2013-06-29 12:57:33 +04:00

random.c

The /dev/random changes for 3.13 including a number of improvements in

2013-11-16 10:19:15 -08:00

raw.c

raw: test against runtime value of max_raw_minors

2014-02-07 08:29:46 -08:00

rtc.c

various char drivers: remove deprecated IRQF_DISABLED

2013-10-16 12:36:10 -07:00

scx200_gpio.c

…

snsc_event.c

various char drivers: remove deprecated IRQF_DISABLED

2013-10-16 12:36:10 -07:00

snsc.c

various char drivers: remove deprecated IRQF_DISABLED

2013-10-16 12:36:10 -07:00

snsc.h

…

sonypi.c

ACPI: Remove the old /proc/acpi/event interface

2013-07-15 13:56:36 +02:00

tb0219.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

tile-srom.c

drivers/char: delete non-required instances of include <linux/init.h>

2014-02-07 15:10:19 -08:00

tlclk.c

tlclk: remove deprecated IRQF_DISABLED

2013-10-16 12:36:10 -07:00

toshiba.c

…

ttyprintk.c

drivers/char: don't use module_init in non-modular ttyprintk.c

2014-01-13 14:57:20 -08:00

uv_mmtimer.c

…

virtio_console.c

fix a kmap leak in virtio_console

2014-02-09 15:21:16 -05:00