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linux/drivers/acpi
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Rafael J. Wysocki 532db65943 ACPI: property: Do not pass NULL handles to acpi_attach_data() 
[ Upstream commit baf60d5cb8 ]

In certain circumstances, the ACPI handle of a data-only node may be
NULL, in which case it does not make sense to attempt to attach that
node to an ACPI namespace object, so update the code to avoid attempts
to do so.

This prevents confusing and unuseful error messages from being printed.

Also document the fact that the ACPI handle of a data-only node may be
NULL and when that happens in a code comment.  In addition, make
acpi_add_nondev_subnodes() print a diagnostic message for each data-only
node with an unknown ACPI namespace scope.

Fixes: 1d52f10917 ("ACPI: property: Tie data nodes to acpi handles")
Cc: 6.0+ <stable@vger.kernel.org> # 6.0+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-19 16:34:04 +02:00
..
acpica ACPICA: Allow to skip Global Lock initialization 2025-10-19 16:34:00 +02:00
apei ACPI: APEI: GHES: add TAINT_MACHINE_CHECK on GHES panic path 2025-08-20 18:30:25 +02:00
arm64 ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids() 2025-09-09 18:58:14 +02:00
dptf ACPI: DPTF: Add Lunar Lake support 2024-04-08 16:10:27 +02:00
nfit ACPI: NFIT: Fix incorrect ndr_desc being reportedin dev_err message 2025-10-15 12:00:12 +02:00
numa mm: introduce numa_memblks 2024-09-03 21:15:30 -07:00
pmic ACPI: PMIC: Remove unneeded check in tps68470_pmic_opregion_probe() 2024-08-02 17:05:08 +02:00
riscv ACPI: RISC-V: Fix FFH_CPPC_CSR error handling 2025-09-09 18:58:26 +02:00
x86 ACPI: x86: Extend Lenovo Yoga Tab 3 quirk with skip GPIO event-handlers 2025-04-10 14:39:37 +02:00
ac.c ACPI: AC: Use strscpy() instead of strcpy() 2024-08-26 19:11:58 +02:00
acpi_adxl.c ACPI/ADXL: Add address translation interface using an ACPI DSM 2018-10-16 10:03:00 +02:00
acpi_apd.c ACPI: APD: Add AMDI0015 as platform device 2024-08-20 16:34:47 +02:00
acpi_configfs.c ACPI: configfs: Make get_header() to return error pointer 2021-07-16 19:20:28 +02:00
acpi_dbg.c ACPI: debug: fix signedness issues in read/write helpers 2025-10-19 16:33:44 +02:00
acpi_extlog.c ACPI: extlog: Clear Extended Error Log status when RAS_CEC handled the error 2023-12-13 13:50:00 +01:00
acpi_ffh.c ACPI: FFH: Drop the inclusion of linux/arm-smccc.h 2023-06-12 19:28:20 +02:00
acpi_fpdt.c ACPI: FPDT: properly handle invalid FPDT subtables 2023-10-03 21:12:22 +02:00
acpi_ipmi.c ACPI: IPMI: Add helper to wait for when SMI is selected 2024-04-28 10:07:34 -07:00
acpi_lpat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
acpi_lpit.c ACPI: LPIT: Avoid u32 multiplication overflow 2023-11-22 20:55:20 +01:00
acpi_memhotplug.c mm/memory_hotplug: allow memmap on memory hotplug request to fallback 2023-08-21 13:37:48 -07:00
acpi_pad.c Merge branches 'acpi-video', 'acpi-resource', 'acpi-pad' and 'acpi-misc' 2024-09-11 22:05:16 +02:00
acpi_pcc.c ACPI: PCC: Setup PCC Opregion handler only if platform interrupt is available 2022-11-23 19:06:56 +01:00
acpi_platform.c ACPI: platform: Move SMB0001 HID to the header and reuse 2023-07-04 19:28:20 +02:00
acpi_pnp.c ACPI: PNP: Add Intel OC Watchdog IDs to non-PNP device list 2025-05-29 11:02:04 +02:00
acpi_processor.c ACPI: processor: fix acpi_object initialization 2025-08-20 18:30:25 +02:00
acpi_tad.c ACPI: TAD: Add missing sysfs_remove_group() for ACPI_TAD_RT 2025-10-19 16:33:44 +02:00
acpi_video.c ACPI: video: Use strscpy() instead of strcpy() 2024-07-04 14:21:37 +02:00
acpi_watchdog.c ACPI: use %pe for better readability of errors while printing 2024-02-16 19:31:12 +01:00
battery.c ACPI: battery: Add synchronization between interface updates 2025-10-19 16:34:04 +02:00
bgrt.c treewide: Use sysfs_bin_attr_simple_read() helper 2024-04-11 16:02:25 +02:00
bus.c ACPI: bus: Bail out if acpi_kobj registration fails 2025-06-27 11:11:27 +01:00
button.c ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue 2024-10-21 14:00:59 +02:00
container.c ACPI: container: Use acpi_dev_for_each_child() 2022-06-20 20:33:05 +02:00
cppc_acpi.c ACPI: CPPC: Fix NULL pointer dereference when nosmp is used 2025-06-19 15:32:29 +02:00
debugfs.c ACPI: debugfs: Remove dead ACPICA debug code 2020-09-25 18:25:51 +02:00
device_pm.c ACPI: PM: Add acpi_device_fix_up_power_children() function 2023-11-20 17:31:49 +01:00
device_sysfs.c ACPI: sysfs: remove return value of acpi_device_setup_files() 2024-08-02 16:44:22 +02:00
dock.c ACPI: scan: Introduce typedef:s for struct acpi_hotplug_context members 2024-04-04 21:19:02 +02:00
ec.c ACPI: EC: Add device to acpi_ec_no_wakeup[] qurik list 2025-09-04 15:31:44 +02:00
ec_sys.c ACPI: EC: Mark the ec_sys write_support param as module_param_hw() 2021-12-01 20:19:30 +01:00
event.c Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc' 2021-06-29 15:51:25 +02:00
evged.c ACPI: GED: Convert to platform remove callback returning void 2024-02-27 15:57:33 +01:00
fan.h ACPI: fan: Add hwmon support 2024-05-28 11:53:35 +02:00
fan_attr.c ACPI: fan: Convert to use sysfs_emit_at() API 2022-12-06 12:44:14 +01:00
fan_core.c ACPI: fan: cleanup resources in the error path of .probe() 2025-02-08 09:57:05 +01:00
fan_hwmon.c ACPI: fan: Add hwmon support 2024-05-28 11:53:35 +02:00
glue.c ACPI: Fix selecting wrong ACPI fwnode for the iGPU on some Dell laptops 2023-01-10 20:23:48 +01:00
hed.c ACPI: HED: Always initialize before evged 2025-05-29 11:02:46 +02:00
internal.h Merge branches 'acpi-ec', 'acpi-sysfs', 'acpi-utils' and 'acpi-soc' 2024-09-11 21:45:36 +02:00
ioapic.c ACPI: Silence missing prototype warnings 2022-12-30 19:12:30 +01:00
irq.c ACPI: irq: Fix incorrect return value in acpi_register_gsi() 2023-10-18 13:11:04 +02:00
Kconfig ACPI: HED: Always initialize before evged 2025-05-29 11:02:46 +02:00
Makefile ACPI: fan: Add hwmon support 2024-05-28 11:53:35 +02:00
mipi-disco-img.c ACPI: mipi-disco-img: Switch to new Intel CPU model defines 2024-06-17 21:37:57 +02:00
nhlt.c ACPI: NHLT: Streamline struct naming 2024-03-27 16:36:45 +01:00
nvs.c Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc' 2021-06-29 15:51:25 +02:00
osi.c ACPI: OSI: Stop advertising support for "3.0 _SCP Extensions" 2025-06-19 15:31:33 +02:00
osl.c ACPI: OSL: Use spin locks without disabling interrupts 2023-12-28 14:13:52 +01:00
pci_irq.c xen/pvh: Setup gsi for passthrough device 2024-09-25 09:54:52 +02:00
pci_link.c ACPI: pci_link: Clear the dependencies after probe 2024-08-27 15:48:35 +02:00
pci_mcfg.c PCI/ACPI: Increase Loongson max PCI hosts to 8 2024-08-01 18:04:05 -05:00
pci_root.c Merge branch 'pci/misc' 2024-07-19 10:10:33 -05:00
pci_slot.c ACPI: use %pe for better readability of errors while printing 2024-02-16 19:31:12 +01:00
pfr_telemetry.c ACPI: pfr_telemetry: Convert to platform remove callback returning void 2024-02-27 15:57:34 +01:00
pfr_update.c ACPI: pfr_update: Fix the driver update version check 2025-08-28 16:31:03 +02:00
platform_profile.c ACPI: platform-profile: Fix CFI violation when accessing sysfs files 2025-04-20 10:16:00 +02:00
power.c ACPI: PM: Do not turn of unused power resources on the Toshiba Click Mini 2023-04-27 18:44:43 +02:00
pptt.c ACPI: PPTT: Fix processor subtable walk 2025-05-22 14:29:46 +02:00
prmt.c ACPI: PRM: Reduce unnecessary printing to avoid user confusion 2025-08-20 18:30:24 +02:00
proc.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
processor_core.c Updates for the interrupt subsystem: 2024-07-22 13:52:05 -07:00
processor_driver.c ACPI: processor: Move arch_init_invariance_cppc() call later 2024-11-06 21:31:36 +01:00
processor_idle.c ACPI: processor: idle: Fix memory leak when register cpuidle device failed 2025-10-15 11:59:57 +02:00
processor_pdc.c ACPI: processor: Fix uninitialized access of buf in acpi_set_pdc_bits() 2023-09-18 12:16:16 +02:00
processor_perflib.c ACPI: processor: perflib: Move problematic pr->performance check 2025-08-20 18:30:16 +02:00
processor_thermal.c ACPI: processor: reduce CPUFREQ thermal reduction pctg for Tegra241 2023-12-06 20:52:47 +01:00
processor_throttling.c ACPI: processor: throttling: remove variable count 2022-10-28 19:02:45 +02:00
property.c ACPI: property: Do not pass NULL handles to acpi_attach_data() 2025-10-19 16:34:04 +02:00
reboot.c ACPI: reboot: Unify the message printing 2021-06-07 15:36:46 +02:00
resource.c ACPI: resource: fix a typo for MECHREVO in irq1_edge_low_force_override[] 2025-06-19 15:31:32 +02:00
sbs.c ACPI: SBS: manage alarm sysfs attribute through psy core 2024-06-13 21:30:00 +02:00
sbshc.c ACPI: make remove callback of ACPI driver void 2022-11-23 19:11:22 +01:00
sbshc.h ACPI: Fix whitespace inconsistencies 2020-11-09 19:08:06 +01:00
scan.c Merge branches 'acpi-ec', 'acpi-sysfs', 'acpi-utils' and 'acpi-soc' 2024-09-11 21:45:36 +02:00
sleep.c ACPI: PM: Quirk ASUS ROG M16 to default to S3 sleep 2024-09-10 20:19:52 +02:00
sleep.h ACPI: s2idle: Add a new ->check() callback for platform_s2idle_ops 2022-09-09 17:37:40 +02:00
spcr.c ACPI: SPCR: Amend indentation 2023-03-27 20:50:28 +02:00
sysfs.c ACPI: sysfs: Enable ACPI sysfs support for CCEL records 2023-03-27 20:43:58 +02:00
tables.c ACPI: tables: Print MULTIPROC_WAKEUP when MADT is parsed 2024-06-17 17:46:28 +02:00
thermal.c ACPI: thermal: Execute _SCP before reading trip points 2025-07-10 16:04:58 +02:00
thermal_lib.c ACPI: thermal_lib: Initialize temp_decik to zero 2024-02-22 20:36:17 +01:00
tiny-power-button.c ACPI: tiny-power-button: Eliminate the driver notify callback 2023-06-16 19:48:09 +02:00
utils.c ACPI: utils: Add rev/func to message when acpi_evaluate_dsm() fails 2024-08-29 13:34:09 +02:00
video_detect.c ACPI: video: force native for Apple MacbookPro11,2 and Air7,2 2024-12-14 20:03:37 +01:00
viot.c iommu: Resolve fwspec ops automatically 2024-07-04 14:36:03 +01:00
wakeup.c ACPI: Fix whitespace inconsistencies 2020-11-09 19:08:06 +01:00