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f81a49d13b
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Stefan Haberland f81a49d13b s390/dasd: fix kernel panic when alias is set offline 
The dasd device driver selects which (alias or base) device is used
for a given requests when the request is build. If the chosen alias
device is set offline before the request gets queued to the device
queue the starting function may use device structures that are
already freed. This might lead to a hanging offline process or a
kernel panic.

Add a check to the starting function that returns the request to the
upper layer if the device is already in offline processing.

In addition to that prevent that an alias device that's already in
offline processing gets chosen as start device.

Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@linux.vnet.ibm.com>
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-07-13 11:02:14 +02:00
..
accessibility
acpi The libnvdimm sub-system introduces, in addition to the libnvdimm-core, 2015-06-29 10:34:42 -07:00
amba
android
ata ARM: SoC cleanups for v4.2 2015-06-26 11:08:27 -07:00
atm
auxdisplay
base Driver core patches for 4.2-rc1 2015-06-26 15:07:37 -07:00
bcma
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-06-30 19:46:34 -07:00
bluetooth Bluetooth: ath3k: Add support of 04ca:300d AR3012 device 2015-06-18 21:00:06 +03:00
bus ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
cdrom
char Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2015-06-27 13:26:03 -07:00
clk Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
clocksource Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-06-26 12:20:00 -07:00
connector
cpufreq Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
cpuidle Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-06-26 12:20:00 -07:00
crypto Power management and ACPI material for v4.2-rc1 2015-06-23 14:18:07 -07:00
dca
devfreq
dio
dma dmaengine updates for 4.2-rc1 2015-06-29 09:44:45 -07:00
dma-buf
edac Driver core patches for 4.2-rc1 2015-06-26 15:07:37 -07:00
eisa
extcon extcon: Redefine the unique id of supported external connectors without 'enum extcon' type 2015-06-12 17:01:42 -07:00
firewire
firmware Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
fmc
gpio Here is the bulk of pin control changes for the v4.2 series: 2015-06-24 19:21:02 -07:00
gpu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
hid Merge branches 'for-4.2/i2c-hid', 'for-4.2/lenovo', 'for-4.2/plantronics', 'for-4.2/rmi', 'for-4.2/sensor-hub', 'for-4.2/sjoy', 'for-4.2/sony' and 'for-4.2/wacom' into for-linus 2015-06-22 16:23:43 +02:00
hsi HSI: nokia-modem: use flags argument of devm_gpiod_get to set direction 2015-06-23 02:40:03 +02:00
hv Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion 2015-06-12 16:58:33 -07:00
hwmon Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
hwspinlock
hwtracing/coresight
i2c Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
ide Merge branch 'for-4.2/core' of git://git.kernel.dk/linux-block 2015-06-25 14:29:53 -07:00
idle
iio
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
input TTY/Serial driver patches for 4.2-rc1 2015-06-26 15:53:22 -07:00
iommu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
ipack
irqchip Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
leds ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
lguest Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
macintosh macintosh/nvram: Remove as unused 2015-06-15 16:42:37 +10:00
mailbox mailbox/bcm2835: Fix mailbox full detection. 2015-06-13 16:20:39 +05:30
mcb
md md updates for 4.2 2015-06-29 11:10:56 -07:00
media Staging driver patches for 4.2-rc1 2015-06-26 15:46:08 -07:00
memory ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
memstick
message fusion: remove dead MTRR code 2015-06-13 08:44:14 -07:00
mfd RTC for 4.2 2015-06-25 18:55:33 -07:00
misc Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
mmc Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
mtd Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block 2015-06-25 16:00:17 -07:00
net netconsole: implement extended console support 2015-06-25 17:00:39 -07:00
nfc Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
ntb PCI changes for the v4.2 merge window: 2015-06-23 13:41:24 -07:00
nubus
nvdimm arch, x86: pmem api for ensuring durability of persistent memory updates 2015-06-26 11:23:38 -04:00
of Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
oprofile
parisc
parport parport: check exclusive access before register 2015-06-12 16:58:33 -07:00
pci Mohit Kumar has moved 2015-06-25 17:00:38 -07:00
pcmcia Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
phy Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
pinctrl ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
platform Staging driver patches for 4.2-rc1 2015-06-26 15:46:08 -07:00
pnp Merge branches 'pnp' and 'pm-tools' 2015-06-19 01:18:43 +02:00
power power: axp288_charger: fix for API change 2015-06-26 17:44:09 -07:00
powercap
pps
ps3
ptp
pwm pwm: Changes for v4.2-rc1 2015-06-23 13:32:38 -07:00
rapidio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-06-23 14:08:54 -07:00
ras
regulator sound updates for 4.2-rc1 2015-06-25 17:15:18 -07:00
remoteproc
reset
rpmsg
rtc Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
s390 s390/dasd: fix kernel panic when alias is set offline 2015-07-13 11:02:14 +02:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
sfi
sh
sn
soc ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
spi Merge remote-tracking branches 'spi/topic/sirf', 'spi/topic/spidev' and 'spi/topic/zynq' into spi-next 2015-06-18 00:19:56 +01:00
spmi
ssb
staging Staging driver patches for 4.2-rc1 2015-06-26 15:46:08 -07:00
target Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
tc
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2015-06-25 17:51:55 -07:00
thunderbolt
tty Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2015-06-30 21:47:12 -07:00
uio uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config 2015-06-12 17:01:43 -07:00
usb Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
uwb
vfio VFIO updates for v4.2 2015-06-28 12:32:13 -07:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
video TTY/Serial driver patches for 4.2-rc1 2015-06-26 15:53:22 -07:00
virt
virtio PCI changes for the v4.2 merge window: 2015-06-23 13:41:24 -07:00
vlynq
vme vme: tsi148: depend on HAS_DMA for Kconfig 2015-06-12 17:31:05 -07:00
w1 w1: use correct lock on error in w1_seq_show() 2015-06-12 16:58:33 -07:00
watchdog ARM: SoC: platform support for v4.2 2015-06-26 11:34:35 -07:00
xen frontswap: allow multiple backends 2015-06-24 17:49:45 -07:00
zorro
Kconfig libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support 2015-06-24 21:24:10 -04:00
Makefile The libnvdimm sub-system introduces, in addition to the libnvdimm-core, 2015-06-29 10:34:42 -07:00