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84d0c27d62
linux/drivers/base
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Tetsuo Handa 84d0c27d62 driver core: Don't ignore class_dir_create_and_add() failure. 
syzbot is hitting WARN() at kernfs_add_one() [1].
This is because kernfs_create_link() is confused by previous device_add()
call which continued without setting dev->kobj.parent field when
get_device_parent() failed by memory allocation fault injection.
Fix this by propagating the error from class_dir_create_and_add() to
the calllers of get_device_parent().

[1] https://syzkaller.appspot.com/bug?id=fae0fb607989ea744526d1c082a5b8de6529116f

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: syzbot <syzbot+df47f81c226b31d89fb1@syzkaller.appspotmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-14 16:37:46 +02:00
..
firmware_loader firmware: some documentation fixes 2018-04-25 18:37:20 +02:00
power PM / wakeirq: Add wakeup name to dedicated wake irqs 2018-02-26 23:23:37 +01:00
regmap Merge remote-tracking branches 'regmap/topic/debugfs' and 'regmap/topic/mmio-clk' into regmap-next 2018-03-12 09:50:42 -07:00
test driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
arch_topology.c Revert "base: arch_topology: fix section mismatch build warnings" 2018-03-15 14:36:20 +01:00
attribute_container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
base.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bus.c drivers: base: omit redundant interations 2017-12-18 16:47:27 +01:00
cacheinfo.c Merge 4.15-rc6 into driver-core-next 2018-01-02 14:56:51 +01:00
class.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
component.c component: add debugfs support 2017-12-18 16:51:11 +01:00
container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
core.c driver core: Don't ignore class_dir_create_and_add() failure. 2018-05-14 16:37:46 +02:00
cpu.c driver core: cpu: use put_device() if device_register fail 2018-03-15 14:37:04 +01:00
dd.c drivers: base: remove check for callback in coredump_store() 2018-03-23 18:08:02 +01:00
devcon.c drivers: base: Unified device connection lookup 2018-03-22 13:10:29 +01:00
devcoredump.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
devres.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
devtmpfs.c kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare() 2018-04-02 20:16:06 +02:00
dma-coherent.c dma-coherent: clarify dma_mmap_from_dev_coherent documentation 2018-04-23 14:44:17 +02:00
dma-contiguous.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
dma-mapping.c dma-mapping: postpone cpu addr translation on mmap 2018-04-23 14:44:24 +02:00
driver.c drivers: base: omit redundant interations 2017-12-18 16:47:27 +01:00
firmware.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
hypervisor.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
init.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
isa.c Merge 4.15-rc3 into driver-core-next 2017-12-11 08:50:05 +01:00
Kconfig drm/graphics pull request for v4.16-rc1 2018-02-01 17:48:47 -08:00
Makefile Driver core patches for 4.17-rc1 2018-04-04 19:41:45 -07:00
map.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
memory.c mm: check __highest_present_section_nr directly in memory_dev_init() 2018-04-11 10:28:31 -07:00
module.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
node.c mm/memory_hotplug: optimize memory hotplug 2018-04-05 21:36:25 -07:00
pinctrl.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform-msi.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform.c driver core: platform: use put_device() if device_register fail 2018-03-15 14:37:04 +01:00
property.c device property: Constify device_get_match_data() 2018-02-12 10:41:11 +01:00
soc.c base: soc: use put_device() instead of kfree() 2018-03-15 14:37:03 +01:00
syscore.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
topology.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
transport_class.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00