linux/include/acpi
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