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Takashi Iwai 89dbb335cb ALSA: jack: Fix mutex call in snd_jack_report() 
snd_jack_report() is supposed to be callable from an IRQ context, too,
and it's indeed used in that way from virtsnd driver.  The fix for
input_dev race in commit 1b6a6fc528 ("ALSA: jack: Access input_dev
under mutex"), however, introduced a mutex lock in snd_jack_report(),
and this resulted in a potential sleep-in-atomic.

For addressing that problem, this patch changes the relevant code to
use the object get/put and removes the mutex usage.  That is,
snd_jack_report(), it takes input_get_device() and leaves with
input_put_device() for assuring the input_dev being assigned.

Although the whole mutex could be reduced, we keep it because it can
be still a protection for potential races between creation and
deletion.

Fixes: 1b6a6fc528 ("ALSA: jack: Access input_dev under mutex")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/cf95f7fe-a748-4990-8378-000491b40329@moroto.mountain
Tested-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230706155357.3470-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 		2023-07-06 18:01:59 +02:00
Documentation ASoC: Updates for v6.5 2023-06-26 15:38:02 +02:00
LICENSES
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arch This pull request contains the following bug fixes for UML: 2023-05-21 14:03:22 -07:00
block block: Deny writable memory mapping if block is read-only 2023-05-19 20:17:10 -06:00
certs
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crypto This push fixes the following problems: 2023-05-07 10:57:14 -07:00
drivers Merge branch 'for-next' into for-linus 2023-06-26 15:23:23 +02:00
fs four ksmbd server fixes 2023-05-21 10:55:31 -07:00
include ASoC: Updates for v6.5 2023-06-26 15:38:02 +02:00
init Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
io_uring for-6.4/io_uring-2023-05-07 2023-05-07 10:00:09 -07:00
ipc
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kernel Probes fixes for 6.4-rc1: 2023-05-18 09:04:45 -07:00
lib Eight hotfixes. Four are cc:stable, the other four are for post-6.4 2023-05-18 17:06:04 -07:00
mm mm: fix zswap writeback race condition 2023-05-17 15:24:33 -07:00
net Networking fixes for 6.4-rc3, including fixes from can, xfrm, 2023-05-18 08:52:14 -07:00
rust Rust changes for v6.4 2023-04-30 11:20:22 -07:00
samples LoongArch changes for v6.4 2023-05-04 12:40:16 -07:00
scripts Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
security integrity-v6.4 2023-04-29 10:11:32 -07:00
sound ALSA: jack: Fix mutex call in snd_jack_report() 2023-07-06 18:01:59 +02:00
tools ASoC: Updates for v6.5 2023-06-26 15:38:02 +02:00
usr
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virt KVM: Fix vcpu_array[0] races 2023-05-19 13:56:26 -04:00
.clang-format cxl for v6.4 2023-04-30 11:51:51 -07:00
.cocciconfig
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.get_maintainer.ignore
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.gitattributes
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.gitignore
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.mailmap mailmap: add entries for Nikolay Aleksandrov 2023-05-17 09:35:05 +01:00
.rustfmt.toml
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COPYING
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CREDITS MAINTAINERS: sctp: move Neil to CREDITS 2023-05-12 08:51:32 +01:00
Kbuild
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Kconfig
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MAINTAINERS ASoC: Updates for v6.5 2023-06-26 15:38:02 +02:00
Makefile Linux 6.4-rc3 2023-05-21 14:05:48 -07:00
README
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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.