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Filename Latest commit message Latest commit date
Takashi Iwai 75f418b249 ALSA: us122l: Use snd_card_free_when_closed() at disconnection
[ Upstream commit b7df09bb348016943f56b09dcaafe221e3f73947 ]

The USB disconnect callback is supposed to be short and not too-long
waiting.  OTOH, the current code uses snd_card_free() at
disconnection, but this waits for the close of all used fds, hence it
can take long.  It eventually blocks the upper layer USB ioctls, which
may trigger a soft lockup.

An easy workaround is to replace snd_card_free() with
snd_card_free_when_closed().  This variant returns immediately while
the release of resources is done asynchronously by the card device
release at the last close.

The loop of us122l->mmap_count check is dropped as well.  The check is
useless for the asynchronous operation with *_when_closed().

Fixes: 030a07e441 ("ALSA: Add USB US122L driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20241113111042.15058-3-tiwai@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-14 19:44:27 +01:00
arch ARM: dts: cubieboard4: Fix DCDC5 regulator constraints 2024-12-14 19:44:24 +01:00
block blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race 2024-11-08 16:20:48 +01:00
certs
crypto crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY 2024-12-14 19:44:23 +01:00
Documentation dt-bindings: vendor-prefixes: Add NeoFidelity, Inc 2024-12-14 19:44:25 +01:00
drivers drm/etnaviv: hold GPU lock across perfmon sampling 2024-12-14 19:44:27 +01:00
fs hfsplus: don't query the device logical block size multiple times 2024-12-14 19:44:22 +01:00
include time: Fix references to _msecs_to_jiffies() handling of values 2024-12-14 19:44:23 +01:00
init initramfs: avoid filename buffer overrun 2024-12-14 19:44:21 +01:00
ipc
kernel time: Fix references to _msecs_to_jiffies() handling of values 2024-12-14 19:44:23 +01:00
lib
LICENSES
mm mm: revert "mm: shmem: fix data-race in shmem_getattr()" 2024-12-14 19:44:19 +01:00
net net: rfkill: gpio: Add check for clk_enable() 2024-12-14 19:44:27 +01:00
samples bpf: Fix the xdp_adjust_tail sample prog issue 2024-12-14 19:44:26 +01:00
scripts kbuild: Use uname for LINUX_COMPILE_HOST detection 2024-12-14 19:44:19 +01:00
security security/keys: fix slab-out-of-bounds in key_task_permission 2024-11-17 14:58:50 +01:00
sound ALSA: us122l: Use snd_card_free_when_closed() at disconnection 2024-12-14 19:44:27 +01:00
tools selftests: net: really check for bg process completion 2024-12-14 19:44:27 +01:00
usr
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-11-08 16:20:47 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.286 2024-11-17 14:58:53 +01:00
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.