Go to file
Benjamin Gaignard 3e7d82ebb8 media: usbtv: Remove useless locks in usbtv_video_free()
[ Upstream commit 65e6a2773d ]

Remove locks calls in usbtv_video_free() because
are useless and may led to a deadlock as reported here:
https://syzkaller.appspot.com/x/bisect.txt?x=166dc872180000
Also remove usbtv_stop() call since it will be called when
unregistering the device.

Before 'c838530d230b' this issue would only be noticed if you
disconnect while streaming and now it is noticeable even when
disconnecting while not streaming.

Fixes: c838530d23 ("media: media videobuf2: Be more flexible on the number of queue stored buffers")
Fixes: f3d27f34fd ("[media] usbtv: Add driver for Fushicai USBTV007 video frame grabber")

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: fix minor spelling mistake in log message]
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:17:16 -04:00
Documentation dt-bindings: arm-smmu: fix SM8[45]50 GPU SMMU if condition 2024-03-26 18:17:14 -04:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch powerpc/hv-gpci: Fix the H_GET_PERF_COUNTER_INFO hcall return value checks 2024-03-26 18:17:15 -04:00
block block: fix deadlock between bd_link_disk_holder and partition scan 2024-03-26 18:16:27 -04:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: jitter - fix CRYPTO_JITTERENTROPY help text 2024-03-26 18:17:12 -04:00
drivers media: usbtv: Remove useless locks in usbtv_video_free() 2024-03-26 18:17:16 -04:00
fs quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
include drm/tests: helpers: Include missing drm_drv header 2024-03-26 18:17:15 -04:00
init init/Kconfig: lower GCC version check for -Warray-bounds 2024-03-04 16:40:33 -08:00
io_uring io_uring/net: fix overflow check in io_recvmsg_mshot_prep() 2024-03-26 18:16:29 -04:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes() 2024-03-26 18:16:57 -04:00
lib net: blackhole_dev: fix build warning for ethh set but not used 2024-03-26 18:16:38 -04:00
mm quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
net devlink: Fix length of eswitch inline-mode 2024-03-26 18:16:57 -04:00
rust Rust changes for v6.8 2024-01-11 13:05:41 -08:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts 6 hotfixes. 4 are cc:stable and the remainder pertain to post-6.7 2024-03-07 17:16:38 -08:00
security integrity-v6.8-fix 2024-03-05 13:21:30 -08:00
sound ASoC: meson: axg-tdm-interface: add frame rate constraint 2024-03-26 18:17:13 -04:00
tools perf vendor events amd: Fix Zen 4 cache latency events 2024-03-26 18:17:16 -04:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Make KVM_MEM_GUEST_MEMFD mutually exclusive with KVM_MEM_READONLY 2024-02-22 17:07:06 -08:00
.clang-format clang-format: Update with v6.7-rc4's `for_each` macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap drm fixes for 6.8 final 2024-03-08 12:44:56 -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: supplement of zswap maintainers update 2024-01-25 23:52:21 -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 drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
Makefile Linux 6.8.1 2024-03-15 14:19:29 -04:00
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.