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4fa3e78be7e985ca814ce2aa0c09cbee404efcf7
linux/drivers
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Bjorn Helgaas 4fa3e78be7 Driver core: treat unregistered bus_types as having no devices 
A bus_type has a list of devices (klist_devices), but the list and the
subsys_private structure that contains it are not initialized until the
bus_type is registered with bus_register().

The panic/reboot path has fixups that look up devices in pci_bus_type.  If
we panic before registering pci_bus_type, the bus_type exists but the list
does not, so mach_reboot_fixups() trips over a null pointer and panics
again:

    mach_reboot_fixups
      pci_get_device
        ..
          bus_find_device(&pci_bus_type, ...)
            bus->p is NULL

Joonsoo reported a problem when panicking before PCI was initialized.
I think this patch should be sufficient to replace the patch he posted
here: https://lkml.org/lkml/2012/12/28/75 ("[PATCH] x86, reboot: skip
reboot_fixups in early boot phase")

Reported-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-03 17:55:29 -08:00
..
accessibility
…
acpi
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
amba
amba: Convert to devm_ioremap_resource()
2013-01-25 12:21:46 -08:00
ata
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
atm
Drivers: atm: remove __dev* attributes.
2013-01-03 15:57:04 -08:00
auxdisplay
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
base
Driver core: treat unregistered bus_types as having no devices
2013-02-03 17:55:29 -08:00
bcma
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-01-08 07:31:49 -08:00
block
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
bluetooth
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-12-12 18:07:07 -08:00
bus
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
cdrom
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
char
char: Convert to devm_ioremap_resource()
2013-01-22 11:41:56 -08:00
clk
Merge tag 'mvebu_fixes_for_v3.8-rc5' of git://git.infradead.org/users/jcooper/linux into fixes
2013-01-23 20:30:52 -08:00
clocksource
Drivers: clocksource: remove __dev* attributes.
2013-01-03 15:57:15 -08:00
connector
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
cpufreq
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
cpuidle
cpuidle: remove the power_specified field in the driver
2013-01-15 14:18:04 +01:00
crypto
Drivers: crypto: remove __dev* attributes.
2013-01-03 15:57:02 -08:00
dca
…
devfreq
PM / devfreq: exynos4_bus: honor RCU lock usage
2013-01-22 13:28:40 +01:00
dio
…
dma
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
edac
drivers/edac: remove depends on CONFIG_EXPERIMENTAL
2013-01-17 12:11:26 -08:00
eisa
eisa: Fix spelling of "asynchronous".
2012-11-19 14:30:25 +01:00
extcon
Merge tag 'pull_req_20121122' of git://git.kernel.org/pub/scm/linux/kernel/git/mzx/extcon into char-misc-next
2012-11-27 06:44:10 -08:00
firewire
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-12-13 12:00:02 -08:00
firmware
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
gpio
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
gpu
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
hid
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
hsi
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
hv
Drivers: hv: balloon: Fix a memory leak
2013-01-17 11:58:00 -08:00
hwmon
hwmon: (vexpress) Fix build error seen if CONFIG_OF_DEVICE is not set
2013-01-09 21:47:22 -08:00
hwspinlock
hwspinlock: remove use of __devexit
2012-11-28 11:41:36 -08:00
i2c
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
ide
drivers/ide: remove depends on CONFIG_EXPERIMENTAL
2013-01-11 11:38:05 -08:00
idle
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
iio
iio: Convert to devm_ioremap_resource()
2013-01-22 11:41:56 -08:00
infiniband
Drivers: infinband: remove __dev* attributes.
2013-01-03 15:57:15 -08:00
input
Input: Convert to devm_ioremap_resource()
2013-01-22 11:41:56 -08:00
iommu
iommu: Convert to devm_ioremap_resource()
2013-01-25 12:21:46 -08:00
ipack
Merge tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2012-12-11 14:08:47 -08:00
irqchip
Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2012-12-14 14:42:53 -08:00
isdn
drivers/isdn/hisax: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:43 -08:00
leds
drivers/leds: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:44 -08:00
lguest
drivers/lguest: remove depends on CONFIG_EXPERIMENTAL
2013-01-11 11:38:05 -08:00
macintosh
drivers/macintosh: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:44 -08:00
md
Merge tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm
2012-12-21 17:08:06 -08:00
media
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
memory
memory: Convert to devm_ioremap_resource()
2013-01-22 11:41:56 -08:00
memstick
drivers/memstick: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:44 -08:00
message
Drivers: message: remove __dev* attributes.
2013-01-03 15:57:14 -08:00
mfd
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
misc
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
mmc
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
mtd
mtd: Convert to devm_ioremap_resource()
2013-01-25 12:21:47 -08:00
net
drivers/net/ethernet/fujitsu: remove depends on CONFIG_EXPERIMENTAL
2013-01-22 12:33:47 -08:00
nfc
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
nubus
…
of
of: Fix export of of_find_matching_node_and_match()
2012-12-19 10:58:53 +00:00
oprofile
mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file
2012-10-09 16:22:18 +09:00
parisc
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
parport
Drivers: parport: remove __dev* attributes.
2013-01-03 15:57:03 -08:00
pci
Merge tag '3.8-pci-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2013-01-22 16:36:23 -08:00
pcmcia
drivers/pcmcia: remove depends on CONFIG_EXPERIMENTAL
2013-01-11 11:38:41 -08:00
pinctrl
pinctrl: Convert to devm_ioremap_resource()
2013-01-22 11:41:57 -08:00
platform
drivers/platform/x86: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:44 -08:00
pnp
PNP: Handle IORESOURCE_BITS in resource allocation
2013-01-03 13:10:53 +01:00
power
power: Convert to devm_ioremap_resource()
2013-01-25 12:21:47 -08:00
pps
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
ps3
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
ptp
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-12-12 18:07:07 -08:00
pwm
pwm: Convert to devm_ioremap_resource()
2013-01-22 11:41:57 -08:00
rapidio
Merge tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2012-12-11 13:13:55 -08:00
regulator
Merge remote-tracking branch 'regulator/fix/s5m8767' into tmp
2013-01-15 09:38:59 +09:00
remoteproc
drivers/remoteproc: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:44 -08:00
rpmsg
drivers/rpmsg: remove depends on CONFIG_EXPERIMENTAL
2013-01-11 11:39:03 -08:00
rtc
rtc: Convert to devm_ioremap_resource()
2013-01-22 11:41:57 -08:00
s390
s390/chsc: fix SEI usage
2013-01-16 15:57:54 +01:00
sbus
drivers/sbus/char: remove depends on CONFIG_EXPERIMENTAL
2013-01-11 11:39:03 -08:00
scsi
drivers/scsi/device_handler: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:45 -08:00
sfi
…
sh
sh: clkfwk: bugfix: sh_clk_div_enable() care sh_clk_div_set_rate() if div6
2013-01-11 20:57:58 +09:00
sn
Drivers: misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
spi
spi: Convert to devm_ioremap_resource()
2013-01-25 12:21:47 -08:00
ssb
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-01-08 07:31:49 -08:00
staging
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
target
iscsi-target: Fix CmdSN comparison (use cmd->cmd_sn instead of cmd->stat_sn)
2013-01-10 21:00:37 -08:00
tc
…
thermal
thermal: Convert to devm_ioremap_resource()
2013-01-25 12:21:47 -08:00
tty
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
uio
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2012-12-12 12:05:15 -08:00
usb
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
uwb
uwb: fix uwb_dev_unlock() missed at an error path in uwb_rc_cmd_async()
2012-11-26 15:58:43 -08:00
vfio
vfio-pci: Fix buffer overfill
2013-01-15 10:45:26 -07:00
vhost
drivers/vhost: remove depends on CONFIG_EXPERIMENTAL
2013-01-21 14:52:45 -08:00
video
Merge 3.8-rc5 into driver-core-next
2013-01-25 21:06:30 -08:00
virt
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2012-12-18 09:58:09 -08:00
virtio
drivers/virtio: remove depends on CONFIG_EXPERIMENTAL
2013-01-11 11:39:04 -08:00
vlynq
drivers/vlynq: remove depends on CONFIG_EXPERIMENTAL
2013-01-17 12:11:27 -08:00
vme
vme: vme_tsi148.c: use module_pci_driver to simplify the code
2012-10-25 12:02:11 -07:00
w1
w1: Convert to devm_ioremap_resource()
2013-01-22 11:41:58 -08:00
watchdog
watchdog: Convert to devm_ioremap_resource()
2013-01-25 12:21:48 -08:00
xen
Merge tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
2013-01-18 12:02:52 -08:00
zorro
Drivers: zorro: remove CONFIG_HOTPLUG usage
2013-01-03 15:57:01 -08:00
Kconfig
Staging: ipack: move out of staging
2012-11-16 08:14:18 -08:00
Makefile
Staging: ipack: move out of staging
2012-11-16 08:14:18 -08:00