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Alexey Klimov a16e92f8d7 regmap: slimbus: fix bus_context pointer in regmap init calls 
commit 434f7349a1 upstream.

Commit 4e65bda827 ("ASoC: wcd934x: fix error handling in
wcd934x_codec_parse_data()") revealed the problem in the slimbus regmap.
That commit breaks audio playback, for instance, on sdm845 Thundercomm
Dragonboard 845c board:

 Unable to handle kernel paging request at virtual address ffff8000847cbad4
 ...
 CPU: 5 UID: 0 PID: 776 Comm: aplay Not tainted 6.18.0-rc1-00028-g7ea30958b305 #11 PREEMPT
 Hardware name: Thundercomm Dragonboard 845c (DT)
 ...
 Call trace:
  slim_xfer_msg+0x24/0x1ac [slimbus] (P)
  slim_read+0x48/0x74 [slimbus]
  regmap_slimbus_read+0x18/0x24 [regmap_slimbus]
  _regmap_raw_read+0xe8/0x174
  _regmap_bus_read+0x44/0x80
  _regmap_read+0x60/0xd8
  _regmap_update_bits+0xf4/0x140
  _regmap_select_page+0xa8/0x124
  _regmap_raw_write_impl+0x3b8/0x65c
  _regmap_bus_raw_write+0x60/0x80
  _regmap_write+0x58/0xc0
  regmap_write+0x4c/0x80
  wcd934x_hw_params+0x494/0x8b8 [snd_soc_wcd934x]
  snd_soc_dai_hw_params+0x3c/0x7c [snd_soc_core]
  __soc_pcm_hw_params+0x22c/0x634 [snd_soc_core]
  dpcm_be_dai_hw_params+0x1d4/0x38c [snd_soc_core]
  dpcm_fe_dai_hw_params+0x9c/0x17c [snd_soc_core]
  snd_pcm_hw_params+0x124/0x464 [snd_pcm]
  snd_pcm_common_ioctl+0x110c/0x1820 [snd_pcm]
  snd_pcm_ioctl+0x34/0x4c [snd_pcm]
  __arm64_sys_ioctl+0xac/0x104
  invoke_syscall+0x48/0x104
  el0_svc_common.constprop.0+0x40/0xe0
  do_el0_svc+0x1c/0x28
  el0_svc+0x34/0xec
  el0t_64_sync_handler+0xa0/0xf0
  el0t_64_sync+0x198/0x19c

The __devm_regmap_init_slimbus() started to be used instead of
__regmap_init_slimbus() after the commit mentioned above and turns out
the incorrect bus_context pointer (3rd argument) was used in
__devm_regmap_init_slimbus(). It should be just "slimbus" (which is equal
to &slimbus->dev). Correct it. The wcd934x codec seems to be the only or
the first user of devm_regmap_init_slimbus() but we should fix it till
the point where __devm_regmap_init_slimbus() was introduced therefore
two "Fixes" tags.

While at this, also correct the same argument in __regmap_init_slimbus().

Fixes: 4e65bda827 ("ASoC: wcd934x: fix error handling in wcd934x_codec_parse_data()")
Fixes: 7d6f7fb053 ("regmap: add SLIMbus support")
Cc: stable@vger.kernel.org
Cc: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Ma Ke <make24@iscas.ac.cn>
Cc: Steev Klimaszewski <steev@kali.org>
Cc: Srinivas Kandagatla <srini@kernel.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20251022201013.1740211-1-alexey.klimov@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-11-13 15:34:00 -05:00
arch perf/x86/intel: Fix KASAN global-out-of-bounds warning 2025-11-13 15:34:00 -05:00
block blk-crypto: fix missing blktrace bio split events 2025-10-19 16:33:48 +02:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: essiv - Check ssize for decryption and in-place encryption 2025-10-19 16:33:42 +02:00
Documentation dpll: spec: add missing module-name and clock-id to pin-get reply 2025-11-13 15:33:59 -05:00
drivers regmap: slimbus: fix bus_context pointer in regmap init calls 2025-11-13 15:34:00 -05:00
fs smb: client: fix potential cfid UAF in smb2_query_info_compound 2025-11-13 15:33:56 -05:00
include block: make REQ_OP_ZONE_OPEN a write operation 2025-11-13 15:33:59 -05:00
init init: handle bootloader identifier in kernel parameters 2025-10-19 16:33:50 +02:00
io_uring io_uring/sqpoll: be smarter on when to update the stime usage 2025-10-29 14:08:59 +01:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:11:22 +01:00
kernel bpf: Find eligible subprogs for private stack support 2025-11-13 15:33:57 -05:00
lib kunit: test_dev_action: Correctly cast 'priv' pointer to long* 2025-11-13 15:33:57 -05:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm: prevent poison consumption when splitting THP 2025-10-29 14:08:57 +01:00
net Bluetooth: hci_core: Fix tracking of periodic advertisement 2025-11-13 15:33:58 -05:00
rust mm/ksm: fix flag-dropping behavior in ksm_madvise 2025-10-23 16:20:47 +02:00
samples ftrace/samples: Fix function size computation 2025-09-19 16:35:44 +02:00
scripts gcc-plugins: Remove TODO_verify_il for GCC >= 16 2025-10-06 11:17:52 +02:00
security KEYS: trusted_tpm1: Compare HMAC values in constant time 2025-10-19 16:33:51 +02:00
sound ASoC: fsl_sai: Fix sync error in consumer mode 2025-11-13 15:33:59 -05:00
tools tools: ynl: fix string attribute length to include null terminator 2025-11-13 15:33:58 -05:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-13 13:02:18 +01:00
virt KVM: Allow CPU to reschedule while setting per-page memory attributes 2025-07-17 18:37:08 +02:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-08-01 09:48:44 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: introduce .clippy.toml 2025-03-13 13:01:42 +01:00
.mailmap mailmap: add entry for Thorsten Blum 2024-11-07 14:14:59 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove self from DSA entry 2024-11-03 12:52:38 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: Update Alexey Makhalov's email address 2025-05-22 14:29:46 +02:00
Makefile Linux 6.12.57 2025-11-02 22:15:23 +09:00
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.