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3d1cf435e2
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Rafael J. Wysocki 3d1cf435e2 driver core: Extend device_is_dependent() 
If the device passed as the target (second argument) to
device_is_dependent() is not completely registered (that is, it has
been initialized, but not added yet), but the parent pointer of it
is set, it may be missing from the list of the parent's children
and device_for_each_child() called by device_is_dependent() cannot
be relied on to catch that dependency.

For this reason, modify device_is_dependent() to check the ancestors
of the target device by following its parent pointer in addition to
the device_for_each_child() walk.

Fixes: 9ed9895370 ("driver core: Functional dependencies tracking support")
Reported-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/17705994.d592GUb2YH@kreacher
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-21 18:46:34 +01:00
..
accessibility speakup: fix uninitialized flush_lock 2020-12-09 15:38:13 +01:00
acpi libnvdimm for 5.11 2020-12-24 12:18:11 -08:00
amba
android Merge branch 'exec-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-12-15 19:29:43 -08:00
ata
atm
auxdisplay
base driver core: Extend device_is_dependent() 2021-01-21 18:46:34 +01:00
bcma
block block-5.11-2020-12-23 2020-12-24 12:28:35 -08:00
bluetooth
bus ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
cdrom cdrom: Reset sector_size back it is not 2048. 2020-12-12 11:12:25 -07:00
char UAPI Changes: 2020-12-18 12:38:28 -08:00
clk The core framework got some nice improvements this time around. We gained the 2020-12-21 10:39:37 -08:00
clocksource asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00
connector net/connector: Add const qualifier to cb_id 2020-12-16 11:06:49 -08:00
counter
cpufreq cpufreq: intel_pstate: Fix fast-switch fallback path 2020-12-30 18:22:17 +01:00
cpuidle ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-12-27 09:14:32 -08:00
dax libnvdimm for 5.11 2020-12-24 12:18:11 -08:00
dca
devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2020-12-15 15:27:16 +01:00
dio
dma dmaengine updates for v5.11-rc1 2020-12-17 12:52:23 -08:00
dma-buf drm fixes for 5.11-rc1 2020-12-24 12:14:29 -08:00
edac Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
eisa
extcon extcon: max77693: Fix modalias string 2020-12-11 17:18:10 +09:00
firewire
firmware EFI updates collected by Ard Biesheuvel: 2020-12-24 12:40:07 -08:00
fpga
fsi hwmon patches for v5.11 2020-12-15 16:06:14 -08:00
gnss
gpio This is the bulk of the GPIO changes for the v5.11 kernel cycle: 2020-12-17 18:07:20 -08:00
gpu drm/amd/display: avoid uninitialized variable warning 2020-12-25 15:41:13 -08:00
greybus
hid Merge branch 'for-5.11/wacom' into for-linus 2020-12-16 11:44:38 +01:00
hsi
hv hyperv-next for 5.11 2020-12-16 11:49:46 -08:00
hwmon hwmon: (k10temp) Remove support for displaying voltage and current on Zen CPUs 2020-12-22 08:18:36 -08:00
hwspinlock hwspinlock: sirf: Remove the redundant 'of_match_ptr' 2020-12-10 13:34:40 -06:00
hwtracing Char / Misc driver updates for 5.11-rc1 2020-12-15 14:10:09 -08:00
i2c Power management updates for 5.11-rc1 2020-12-15 16:30:31 -08:00
i3c i3c/master/mipi-i3c-hci: quiet maybe-unused variable warning 2020-12-17 10:31:30 +01:00
ide SCSI fixes on 20210101 2021-01-01 12:58:07 -08:00
idle intel_idle: add SnowRidge C-state table 2020-12-30 18:25:34 +01:00
iio Staging / IIO driver patches for 5.11-rc1 2020-12-15 14:18:40 -08:00
infiniband block/rnbd-clt: Does not request pdu to rtrs-clt 2020-12-16 14:56:09 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2020-12-15 16:18:23 -08:00
interconnect ARM: device tree updates for 5.11 2020-12-16 16:27:35 -08:00
iommu IOMMU updates for 5.11 2020-12-16 13:58:47 -08:00
ipack
irqchip ARM: 2020-12-20 10:44:05 -08:00
isdn
leds
lightnvm drivers/lightnvm: fix a null-ptr-deref bug in pblk-core.c 2020-12-08 10:02:45 -07:00
macintosh
mailbox mailbox: arm_mhuv2: Add driver 2020-12-09 19:26:02 -06:00
mcb
md Revert WQ_SYSFS change that broke reencryption (and all other 2020-12-28 13:32:16 -08:00
media ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
memory Merge tag 'memory-controller-drv-tegra-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers 2020-12-09 00:40:02 +01:00
memstick
message SCSI misc on 20201216 2020-12-16 13:34:31 -08:00
mfd mfd: ab8500-debugfs: Remove extraneous seq_putc 2020-12-26 09:19:49 -08:00
misc powerpc updates for 5.11 2020-12-17 13:34:25 -08:00
mmc MMC core: 2020-12-15 15:57:25 -08:00
most
mtd This pull request contains changes for JFFS2, UBI and UBIFS: 2020-12-17 17:46:34 -08:00
mux
net A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy 2020-12-24 13:50:23 -08:00
nfc nfc: s3fwrn5: Remove unused NCI prop commands 2020-12-16 13:09:35 -08:00
ntb Big fix for IDT NTB and Intel NTB LTR management support 2020-12-27 09:22:55 -08:00
nubus
nvdimm libnvdimm/label: Return -ENXIO for no slot in __blk_label_update 2020-12-16 16:53:00 -08:00
nvme RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
nvmem
of Driver core updates for 5.11-rc1 2020-12-15 14:02:26 -08:00
opp opp: Call the missing clk_put() on error 2020-12-28 10:56:22 +05:30
oprofile
parisc
parport
pci pci-v5.11-fixes-1 2020-12-25 20:17:40 -08:00
pcmcia Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux 2020-12-19 12:50:10 -08:00
perf perf/imx_ddr: Add system PMU identifier for userspace 2020-12-09 14:14:02 +00:00
phy Char / Misc driver updates for 5.11-rc1 2020-12-15 14:10:09 -08:00
pinctrl A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy 2020-12-24 13:50:23 -08:00
platform chrome platform changes for 5.11 2020-12-23 15:06:22 -08:00
pnp
power power: supply: Fix a typo in warning message 2020-12-13 01:00:10 +01:00
powercap Merge branches 'pm-sleep', 'pm-acpi', 'pm-domains' and 'powercap' 2020-12-15 15:26:14 +01:00
pps
ps3 powerpc/ps3: use dma_mapping_error() 2020-12-15 22:50:12 +11:00
ptp ptp: clockmatrix: deprecate firmware older than 4.8.7 2020-12-09 15:00:55 -08:00
pwm pwm: Changes for v5.11-rc1 2020-12-19 11:51:32 -08:00
rapidio rapidio: remove unused rio_get_asm() and rio_get_device() 2020-12-15 22:46:18 -08:00
ras
regulator Merge remote-tracking branch 'regulator/for-5.11' into regulator-next 2020-12-11 17:48:32 +00:00
remoteproc ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
reset ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
rpmsg
rtc RTC for 5.11 2020-12-20 10:12:06 -08:00
s390 block-5.11-2020-12-23 2020-12-24 12:28:35 -08:00
sbus
scsi SCSI fixes on 20210101 2021-01-01 12:58:07 -08:00
sfi
sh
siox siox: Make remove callback return void 2020-12-10 16:17:15 +01:00
slimbus slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew() 2020-12-10 16:23:56 +01:00
soc OpenRISC updates for 5.11 2020-12-17 13:41:27 -08:00
soundwire
spi Merge remote-tracking branch 'spi/for-5.11' into spi-next 2020-12-11 17:49:01 +00:00
spmi spmi: Add driver shutdown support 2020-12-10 10:45:36 +01:00
ssb
staging UAPI Changes: 2020-12-18 12:38:28 -08:00
target SCSI misc on 20201216 2020-12-16 13:34:31 -08:00
tc
tee ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
thermal - Add Alder Lake support ACPI ids (Srinivas Pandruvada) 2020-12-18 12:19:37 -08:00
thunderbolt
tty OpenRISC updates for 5.11 2020-12-17 13:41:27 -08:00
uio uio: uio_hv_generic: use devm_kzalloc() for private data alloc 2020-12-09 19:59:00 +01:00
usb powerpc updates for 5.11 2020-12-17 13:34:25 -08:00
vdpa virtio,vdpa: features, cleanups, fixes 2020-12-24 12:06:46 -08:00
vfio ARM: 2020-12-20 10:44:05 -08:00
vhost virtio,vdpa: features, cleanups, fixes 2020-12-24 12:06:46 -08:00
video UAPI Changes: 2020-12-18 12:38:28 -08:00
virt
virtio virtio,vdpa: features, cleanups, fixes 2020-12-24 12:06:46 -08:00
visorbus
vlynq
vme vme: switch from 'pci_' to 'dma_' API 2020-12-09 19:44:34 +01:00
w1
watchdog linux-watchdog 5.11-rc1 tag 2020-12-23 15:01:49 -08:00
xen A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy 2020-12-24 13:50:23 -08:00
zorro
Kconfig
Makefile asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00