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Rafael J. Wysocki ebd6884167 PM: sleep: Update power.completion for all devices on errors 
After commit aa7a9275ab ("PM: sleep: Suspend async parents after
suspending children"), the following scenario is possible:

 1. Device A is async and it depends on device B that is sync.
 2. Async suspend is scheduled for A before the processing of B is
    started.
 3. A is waiting for B.
 4. In the meantime, an unrelated device fails to suspend and returns
    an error.
 5. The processing of B doesn't start at all and its power.completion is
    not updated.
 6. A is still waiting for B when async_synchronize_full() is called.
 7. Deadlock ensues.

To prevent this from happening, update power.completion for all devices
on errors in all suspend phases, but do not do it directly for devices
that are already being processed or are waiting for the processing to
start because in those cases it may be necessary to wait for the
processing to actually complete before updating power.completion for
the device.

Fixes: aa7a9275ab ("PM: sleep: Suspend async parents after suspending children")
Fixes: 443046d1ad ("PM: sleep: Make suspend of devices more asynchronous")
Closes: https://lore.kernel.org/linux-pm/e13740a0-88f3-4a6f-920f-15805071a7d6@linaro.org/
Reported-and-tested-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://patch.msgid.link/6191258.lOV4Wx5bFT@rjwysocki.net
2025-07-15 14:55:11 +02:00
arch - Update Kirill's email address 2025-07-13 10:41:19 -07:00
block block-6.16-20250626 2025-06-27 09:02:33 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: wp512 - Use API partial block handling 2025-06-23 16:56:56 +08:00
Documentation Fixes for a few clk drivers and bindings: 2025-07-13 11:37:35 -07:00
drivers PM: sleep: Update power.completion for all devices on errors 2025-07-15 14:55:11 +02:00
fs 19 hotfixes. A whopping 16 are cc:stable and the remainder address 2025-07-12 10:30:47 -07:00
include - Fix a case of recursive locking in the MSI code 2025-07-13 10:36:55 -07:00
init futex: Temporary disable FUTEX_PRIVATE_HASH 2025-07-01 15:02:05 +02:00
io_uring io_uring-6.16-20250710 2025-07-11 10:29:30 -07:00
ipc - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
kernel PM: suspend: clean up redundant filesystems_freeze/thaw() handling 2025-07-15 14:55:00 +02:00
lib maple_tree: fix mt_destroy_walk() on root leaf node 2025-07-09 21:07:52 -07:00
LICENSES LICENSES: add CC0-1.0 license text 2025-05-21 14:54:17 +02:00
mm Revert "sched/numa: add statistics of numa balance task" 2025-07-09 21:07:56 -07:00
net netlink: make sure we allow at least one dump skb 2025-07-11 07:31:47 -07:00
rust Merge tag 'drm-misc-fixes-2025-07-10' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes 2025-07-11 14:11:19 +02:00
samples samples/damon: fix damon sample mtier for start failure 2025-07-09 21:07:55 -07:00
scripts scripts: gdb: vfs: support external dentry names 2025-07-09 21:07:54 -07:00
security selinux: change security_compute_sid to return the ssid or tsid on match 2025-06-19 16:13:16 -04:00
sound ALSA: hda/realtek: Enable headset Mic on Positivo K116J 2025-07-07 14:09:09 +02:00
tools - Update Kirill's email address 2025-07-13 10:41:19 -07:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt KVM: Allow CPU to reschedule while setting per-page memory attributes 2025-06-24 12:20:17 -07:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore .gitignore: ignore Python compiled bytecode 2025-04-24 10:12:46 -06:00
.mailmap MAINTAINERS: Update Kirill Shutemov's email address for TDX 2025-07-11 07:25:51 -07:00
.pylintrc docs: add a .pylintrc file with sys path for docs scripts 2025-04-09 12:10:33 -06:00
.rustfmt.toml
COPYING
CREDITS CREDITS: Add entry for Shannon Nelson 2025-06-21 07:34:28 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS - Update Kirill's email address 2025-07-13 10:41:19 -07:00
Makefile Linux 6.16-rc6 2025-07-13 14:25:58 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.