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Alexander Sverdlin 66dc3b9b9a
 ASoC: ep93xx: ignore 0 Hz sysclk 
Commit 2458adb8f9
("SoC: simple-card-utils: set 0Hz to sysclk when shutdown")
added a call to snd_soc_dai_set_sysclk() with 0 Hz frequency. Being
propagated further it causes a division by zero in clk-ep93xx driver:

Division by zero in kernel.
CPU: 0 PID: 52 Comm: aplay Tainted: G        W          6.2.0-rc4-... #1
Hardware name: Generic DT based system
 unwind_backtrace from show_stack+0x10/0x18
 show_stack from dump_stack_lvl+0x28/0x34
 dump_stack_lvl from __div0+0x10/0x1c
 __div0 from Ldiv0+0x8/0x1c
 Ldiv0 from ep93xx_mux_determine_rate+0x78/0x1d0
 ep93xx_mux_determine_rate from clk_core_round_rate_nolock+0x48/0xc8
 clk_core_round_rate_nolock from clk_core_set_rate_nolock+0x48/0x160
 clk_core_set_rate_nolock from clk_set_rate+0x30/0x8c
 clk_set_rate from ep93xx_i2s_set_sysclk+0x30/0x6c
 ep93xx_i2s_set_sysclk from snd_soc_dai_set_sysclk+0x3c/0xa4
 snd_soc_dai_set_sysclk from asoc_simple_shutdown+0xb8/0x164
 asoc_simple_shutdown from snd_soc_link_shutdown+0x44/0x54
 snd_soc_link_shutdown from soc_pcm_clean+0x78/0x180
 soc_pcm_clean from soc_pcm_close+0x28/0x40
 soc_pcm_close from snd_pcm_release_substream.part.0+0x3c/0x84
 snd_pcm_release_substream.part.0 from snd_pcm_release+0x40/0x88
 snd_pcm_release from __fput+0x74/0x278

There has been commit f1879d7b98 ("ASoC: rockchip: ignore 0Hz sysclk"),
but it prepared by far not all drivers.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20230212220923.258414-1-alexander.sverdlin@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
History 2023-02-13 12:44:53 +00:00
arch treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
block treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto This update includes the following changes: 2022-12-14 12:31:09 -08:00
Documentation Add the Infineon PEB2466 codec support 2023-02-09 18:24:27 +00:00
drivers soundwire: stream: Add specific prep/deprep commands to port_prep callback 2023-01-31 12:10:45 +00:00
fs treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
include ASoC: amd: update ps platform acp header file 2023-02-03 12:04:02 +00:00
init Kbuild updates for v6.2 2022-12-19 12:33:32 -06:00
io_uring io_uring/net: fix cleanup after recycle 2022-12-19 08:28:28 -07:00
ipc Non-MM patches for 6.2-rc1. 2022-12-12 17:28:58 -08:00
kernel kernel hardening fixes for v6.2-rc1 2022-12-23 12:00:24 -08:00
lib test_maple_tree: add test for mas_spanning_rebalance() on insufficient data 2022-12-21 14:31:52 -08:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm hugetlb: really allocate vma lock for all sharable vmas 2022-12-21 14:31:52 -08:00
net treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
rust rust: types: add Opaque type 2022-12-04 01:59:16 +01:00
samples Char/Misc driver changes for 6.2-rc1 2022-12-16 03:49:24 -08:00
scripts modernize use of grep in coccicheck 2022-12-23 13:56:41 -08:00
security kernel hardening fixes for v6.2-rc1 2022-12-23 12:00:24 -08:00
sound ASoC: ep93xx: ignore 0 Hz sysclk 2023-02-13 12:44:53 +00:00
tools perf tools fixes and improvements for v6.2: 2nd batch 2022-12-22 11:07:29 -08:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt ARM64: 2022-12-15 11:12:21 -08:00
.clang-format iommufd for 6.2 2022-12-14 09:15:43 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: Cleanup DT Overlay intermediate files as appropriate 2022-11-18 14:45:30 -06:00
.mailmap Non-MM patches for 6.2-rc1. 2022-12-12 17:28:58 -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: zram: zsmalloc: Add an additional co-maintainer 2022-12-15 16:37:49 -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: add the Infineon PEB2466 codec entry 2023-02-09 15:38:27 +00:00
Makefile Linux 6.2-rc1 2022-12-25 13:41:39 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -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 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.