linux-stable/drivers
Alexandre Belloni 66b19d7623
spi: dw: fix possible race condition
It is possible to get an interrupt as soon as it is requested.  dw_spi_irq
does spi_controller_get_devdata(master) and expects it to be different than
NULL. However, spi_controller_set_devdata() is called after request_irq(),
resulting in the following crash:

CPU 0 Unable to handle kernel paging request at virtual address 00000030, epc == 8058e09c, ra == 8018ff90
[...]
Call Trace:
[<8058e09c>] dw_spi_irq+0x8/0x64
[<8018ff90>] __handle_irq_event_percpu+0x70/0x1d4
[<80190128>] handle_irq_event_percpu+0x34/0x8c
[<801901c4>] handle_irq_event+0x44/0x80
[<801951a8>] handle_level_irq+0xdc/0x194
[<8018f580>] generic_handle_irq+0x38/0x50
[<804c6924>] ocelot_irq_handler+0x104/0x1c0

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-18 13:21:33 +01:00
..
accessibility
acpi IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
amba
android
ata Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2018-04-03 17:42:25 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
auxdisplay
base mm: check __highest_present_section_nr directly in memory_dev_init() 2018-04-11 10:28:31 -07:00
bcma
block The big ticket items are: 2018-04-10 12:25:30 -07:00
bluetooth Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME 2018-04-01 21:43:02 +03:00
bus pci-v4.17-changes 2018-04-06 18:31:06 -07:00
cdrom
char RTC for 4.17 2018-04-10 10:22:27 -07:00
clk ARM: SoC driver updates for 4.17 2018-04-05 21:29:35 -07:00
clocksource ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
connector
cpufreq cpufreq: Drop cpufreq_table_validate_and_show() 2018-04-10 08:40:45 +02:00
cpuidle cpuidle: menu: Avoid selecting shallow states with stopped tick 2018-04-09 11:54:57 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-04-04 17:11:08 -07:00
dax libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
dca
devfreq
dio
dma DMAengine updates for v4.17-rc1 2018-04-10 12:14:37 -07:00
dma-buf
edac * Add NVDIMM support to EDAC (Tony Luck) 2018-04-05 14:21:13 -07:00
eisa
extcon Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
firewire
firmware MIPS changes for 4.17 2018-04-10 11:39:22 -07:00
fmc treewide: Fix typos in printk 2018-03-27 09:51:22 +02:00
fpga
fsi
gpio DeviceTree updates for 4.17: 2018-04-05 21:03:42 -07:00
gpu remoteproc updates for v4.17 2018-04-10 12:09:27 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-04-05 11:53:34 -07:00
hsi
hv ARM: 2018-04-09 11:42:31 -07:00
hwmon hwmon updates for v4.17 2018-04-09 19:59:54 -07:00
hwspinlock
hwtracing Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
i2c Merge branch 'i2c/for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-04-07 12:36:18 -07:00
ide for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
idle
iio This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
infiniband Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-04-05 13:21:57 -07:00
iommu IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
ipack
irqchip IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-04-03 14:04:18 -07:00
leds
lightnvm lightnvm: pblk: remove some unnecessary NULL checks 2018-03-29 17:29:09 -06:00
macintosh powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
mailbox
mcb
md libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
media remoteproc updates for v4.17 2018-04-10 12:09:27 -07:00
memory
memstick
message
mfd
misc powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
mmc for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
mtd mtd: devices: m25p80: Use spi_mem_set_drvdata() instead of spi_set_drvdata() 2018-05-22 11:56:34 +01:00
mux
net More power management updates for 4.17-rc1 2018-04-11 17:03:20 -07:00
nfc
ntb
nubus
nvdimm libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
nvme for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
nvmem Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
of proc: add seq_put_decimal_ull_width to speed up /proc/pid/smaps 2018-04-11 10:28:33 -07:00
opp
oprofile oprofilefs: don't oops on allocation failure 2018-03-29 15:07:48 -04:00
parisc parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode 2018-03-27 18:52:22 +02:00
parport Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
pci powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
pcmcia Merge branch 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-04-09 09:26:36 -07:00
perf ARM: SoC driver updates for 4.17 2018-04-05 21:29:35 -07:00
phy ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
pinctrl This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
platform platform-drivers-x86 for v4.17-1 2018-04-10 12:18:50 -07:00
pnp
power ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
powercap
pps
ps3
ptp
pwm ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
rapidio rapidio: use a reference count for struct mport_dma_req 2018-04-11 10:28:37 -07:00
ras
regulator Merge remote-tracking branches 'regulator/topic/88pg86x', 'regulator/topic/dt', 'regulator/topic/formatting' and 'regulator/topic/gpio' into regulator-next 2018-03-28 10:33:53 +08:00
remoteproc remoteproc: fix null pointer dereference on glink only platforms 2018-04-05 22:53:16 -07:00
reset Merge branch 'reset/lookup' into reset/next 2018-03-27 11:03:43 +02:00
rpmsg rpmsg: smd: Use announce_create to process any receive work 2018-03-27 21:54:37 -07:00
rtc RTC for 4.17 2018-04-10 10:22:27 -07:00
s390 libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
sbus sparc64: Properly range check DAX completion index 2018-04-01 20:07:00 -04:00
scsi SCSI for-linus on 20180404 2018-04-05 15:05:53 -07:00
sfi
sh
siox
slimbus
sn
soc remoteproc updates for v4.17 2018-04-10 12:09:27 -07:00
soundwire
spi spi: dw: fix possible race condition 2018-07-18 13:21:33 +01:00
spmi
ssb
staging page cache: use xa_lock 2018-04-11 10:28:39 -07:00
target for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
tc
tee
thermal
thunderbolt
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-04-09 09:04:10 -07:00
uio
usb Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2018-04-07 11:11:41 -07:00
uwb
vfio VFIO updates for v4.17-rc1 2018-04-06 19:44:27 -07:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-09 17:04:10 -07:00
video fbdev changes for v4.17: 2018-04-10 10:20:00 -07:00
virt
virtio virtio: feature 2018-04-11 18:58:27 -07:00
visorbus
vlynq
vme
w1
watchdog This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
xen
zorro
Kconfig hwtracing: Add HW tracing support menu 2018-03-29 13:38:10 +03:00
Makefile