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Hans Verkuil 9a7130220a media: cec: avoid decrementing transmit_queue_sz if it is 0 
commit 95c29d46ab2a517e4c26d0a07300edca6768db17 upstream.

WARN if transmit_queue_sz is 0 but do not decrement it.
The CEC adapter will become unresponsive if it goes below
0 since then it thinks there are 4 billion messages in the
queue.

Obviously this should not happen, but a driver bug could
cause this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org>      # for v4.12 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 10:19:56 +01:00
arch
MIPS: Avoid VDSO ABI breakage due to global register variable
2020-01-09 10:19:56 +01:00
block
block: add bio_truncate to fix guard_bio_eod
2020-01-09 10:19:54 +01:00
certs
PKCS#7: Refactor verify_pkcs7_signature()
2019-08-05 18:40:18 -04:00
crypto
KEYS: asymmetric: return ENOMEM if akcipher_request_alloc() fails
2019-12-31 16:46:07 +01:00
Documentation
dt-bindings: Improve validation build error handling
2020-01-04 19:18:11 +01:00
drivers
media: cec: avoid decrementing transmit_queue_sz if it is 0
2020-01-09 10:19:56 +01:00
fs
block: add bio_truncate to fix guard_bio_eod
2020-01-09 10:19:54 +01:00
include
block: add bio_truncate to fix guard_bio_eod
2020-01-09 10:19:54 +01:00
init
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
ipc
ipc/sem.c: convert to use built-in RCU list checking
2019-09-25 17:51:41 -07:00
kernel
taskstats: fix data-race
2020-01-09 10:19:54 +01:00
lib
ubsan, x86: Annotate and allow __ubsan_handle_shift_out_of_bounds() in uaccess regions
2019-12-31 16:44:25 +01:00
LICENSES
LICENSES: Rename other to deprecated
2019-05-03 06:34:32 -06:00
mm
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
2020-01-09 10:19:55 +01:00
net
netfilter: nft_tproxy: Fix port selector on Big Endian
2020-01-09 10:19:54 +01:00
samples
samples: pktgen: fix proc_cmd command result check logic
2019-12-31 16:43:45 +01:00
scripts
scripts/kallsyms: fix definitely-lost memory leak
2020-01-04 19:18:23 +01:00
security
tomoyo: Don't use nifty names on sockets.
2020-01-04 19:18:42 +01:00
sound
ALSA: hda/realtek - Add headset Mic no shutup for ALC283
2020-01-09 10:19:55 +01:00
tools
selftests: vm: add fragment CONFIG_TEST_VMALLOC
2020-01-04 19:18:31 +01:00
usr
kbuild: update compile-test header list for v5.4-rc2
2019-10-05 15:29:49 +09:00
virt
KVM: arm/arm64: Properly handle faulting of device mappings
2019-12-31 16:46:24 +01:00
.clang-format
clang-format: Update with the latest for_each macro list
2019-08-31 10:00:51 +02:00
.cocciconfig
…
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
…
.gitignore
Modules updates for v5.4
2019-09-22 10:34:46 -07:00
.mailmap
ARM: SoC fixes
2019-11-10 13:41:59 -08:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer
2019-10-10 08:12:51 -07:00
Kbuild
kbuild: do not descend to ./Kbuild when cleaning
2019-08-21 21:03:58 +09:00
Kconfig
docs: kbuild: convert docs to ReST and rename to *.rst
2019-06-14 14:21:21 -06:00
MAINTAINERS
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2019-11-22 14:28:14 -08:00
Makefile
Linux 5.4.8
2020-01-04 19:19:19 +01:00
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.
Description
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