Linus Torvalds fc68f42aa7 ACPI: fix NULL pointer dereference ...

Commit 71f6428332 ("ACPI: utils: Fix reference counting in
for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer
that was possibly NULL.  That fails miserably, because that helper
inline function is not set up to handle that case.

Just make acpi_dev_put() silently accept a NULL pointer, rather than
calling down to put_device() with an invalid offset off that NULL
pointer.

Link: https://lore.kernel.org/lkml/a607c149-6bf6-0fd0-0e31-100378504da2@kernel.dk/
Reported-and-tested-by: Jens Axboe <axboe@kernel.dk>
Tested-by: Daniel Scally <djrscally@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2021-07-24 15:25:54 -07:00

..

platform

ACPICA: Tree-wide: fix various typos and spelling mistakes

2021-04-07 19:09:00 +02:00

acbuffer.h

ACPICA: Add _PLD panel positions

2021-06-07 14:04:43 +02:00

acconfig.h

ACPICA: Add support for PlatformRtMechanism OperationRegion handler

2021-06-07 14:04:43 +02:00

acexcep.h

ACPICA: Updated all copyrights to 2021

2021-01-22 15:51:53 +01:00

acnames.h

ACPICA: Updated all copyrights to 2021

2021-01-22 15:51:53 +01:00

acoutput.h

ACPICA: Tree-wide: fix various typos and spelling mistakes

2021-04-07 19:09:00 +02:00

acpi_bus.h

ACPI: fix NULL pointer dereference

2021-07-24 15:25:54 -07:00

acpi_drivers.h

Merge branches 'acpi-pci' and 'acpi-processor'

2021-04-26 17:03:05 +02:00

acpi_io.h

ACPI: OSL: Change the type of acpi_os_map_generic_address() return value

2020-09-11 16:45:00 +02:00

acpi_lpat.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

acpi_numa.h

ACPI: NUMA: fix typo in a comment

2021-06-07 16:41:10 +02:00

acpi.h

ACPICA: Updated all copyrights to 2021

2021-01-22 15:51:53 +01:00

acpiosxf.h

ACPICA: Updated all copyrights to 2021

2021-01-22 15:51:53 +01:00

acpixf.h

ACPICA: Update version to 20210604

2021-06-07 14:04:43 +02:00

acrestyp.h

ACPICA: ACPI 6.4: add CSI2Bus resource template

2021-04-07 19:09:01 +02:00

actbl1.h

ACPICA: Add the CFMWS structure definition to the CEDT table

2021-06-07 14:04:43 +02:00

actbl2.h

ACPICA: Add PRMT module header to facilitate parsing

2021-06-10 15:04:22 +02:00

actbl3.h

ACPICA: acpisrc: Add missing conversion for VIOT support

2021-04-07 19:09:01 +02:00

actbl.h

ACPICA: Updated all copyrights to 2021

2021-01-22 15:51:53 +01:00

actypes.h

ACPICA: Updated all copyrights to 2021

2021-01-22 15:51:53 +01:00

acuuid.h

ACPICA: ACPI 6.4: add USB4 capabilities UUID

2021-04-07 19:09:00 +02:00

apei.h

Merge branches 'acpi-pmic', 'acpi-apei' and 'acpi-x86'

2017-11-13 01:37:17 +01:00

battery.h

ACPI: battery: include linux/power_supply.h

2020-09-25 18:31:19 +02:00

button.h

ACPI: button: move HIDs to acpi/button.h

2020-02-13 23:36:23 +01:00

cppc_acpi.h

ACPI: CPPC: Add emtpy stubs of functions for CONFIG_ACPI_CPPC_LIB unset

2021-03-23 19:44:17 +01:00

ghes.h

ACPI / APEI: Add a notifier chain for unknown (vendor) CPER records

2020-09-16 10:30:42 +01:00

hed.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428

2019-06-05 17:37:16 +02:00

nfit.h

acpi, nfit: Add function to look up nvdimm device and provide SMBIOS handle

2018-03-14 12:43:50 +01:00

pcc.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05 17:37:17 +02:00

pdc_intel.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

processor.h

x86: ACPI: fix CPU hotplug deadlock

2020-04-04 16:28:24 +02:00

reboot.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

video.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00