Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices: OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
Find a file
Pierre-Louis Bossart 8116483407
ASoC: Intel: sof_sdw: avoid oops in error handling
While tinkering with ACPI work-arounds for the HP Omen 16 support, we
identified a corner case where the headset codec device properties are
not set in the codec .init when -EPROBE_DEFER is returned, but
released unconditionally in the .exit().

This leads to a kernel oops

[    4.186891] sof_sdw sof_sdw: snd_soc_register_card failed -517
[    4.186896] BUG: kernel NULL pointer dereference, address: 00000000000003f0
[    4.186914] Oops: 0000 [#1] PREEMPT SMP NOPTI
[    4.186926] RIP: 0010:dev_fwnode+0x5/0x20
[    4.186974]  device_remove_software_node+0x10/0x80
[    4.186982]  sof_sdw_rt711_exit+0x19/0x30 [snd_soc_sof_sdw]
[    4.186990]  mc_dailink_exit_loop+0x94/0xc0 [snd_soc_sof_sdw]
[    4.186996]  ? rt711_rtd_init+0x170/0x170 [snd_soc_sof_sdw]

A similar error case can occur if the addition of the device property
fails. We need to test if the property was successfully added before
removing it.

BugLink: https://github.com/thesofproject/linux/issues/3727
Fixes: 768ad6d80d ("ASoC: Intel: sof_sdw: handle errors on card registration")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220715144144.274770-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-15 17:10:54 +01:00
arch Hot fixes for 5.19-rc1. 2022-06-05 17:05:38 -07:00
block for-5.19/drivers-2022-06-02 2022-06-03 10:25:56 -07:00
certs Kbuild updates for v5.19 2022-05-26 12:09:50 -07:00
crypto This update includes the following changes: 2022-05-27 18:06:49 -07:00
Documentation ASoC: nau8821: Add headset button detection 2022-07-11 17:18:45 +01:00
drivers soundwire: Intel: add trigger callback 2022-07-13 14:26:13 +01:00
fs fix for breakage in #work.fd this window 2022-06-05 17:14:03 -07:00
include soundwire: Intel: add trigger callback 2022-07-13 14:26:13 +01:00
init This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
ipc These changes update the ipc sysctls so that they are fundamentally 2022-06-03 15:54:57 -07:00
kernel A single featurelet for delay accounting. Delayed a bit 2022-06-05 16:58:27 -07:00
lib Bitmap patches for 5.19-rc1 2022-06-04 14:04:27 -07:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm Hot fixes for 5.19-rc1. 2022-06-05 17:05:38 -07:00
net bluetooth: don't use bitmaps for random flag accesses 2022-06-05 16:28:41 -07:00
samples drm for 5.19-rc1 2022-05-25 16:18:27 -07:00
scripts A set of objtool fixes: 2022-06-05 09:45:27 -07:00
security Cleanups (and one fix) around struct mount handling. 2022-06-04 19:00:05 -07:00
sound ASoC: Intel: sof_sdw: avoid oops in error handling 2022-07-15 17:10:54 +01:00
tools A single featurelet for delay accounting. Delayed a bit 2022-06-05 16:58:27 -07:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt VFIO updates for v5.19-rc1 2022-06-01 13:49:15 -07:00
.clang-format clang-format: Fix space after for_each macros 2022-05-20 19:27:16 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
.mailmap Hot fixes for 5.19-rc1. 2022-06-05 17:05:38 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS ASoC: dt-bindings: Add bindings for WCD9335 DAIs 2022-06-29 18:11:27 +01:00
Makefile Linux 5.19-rc1 2022-06-05 17:18:54 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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 Restructured Text 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.