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Dave Jiang 48271d10bf dmaengine: idxd: fix wq slot allocation index check 
[ Upstream commit 673d812d30 ]

The sbitmap wait and allocate routine checks the index that is returned
from sbitmap_queue_get(). It should be idxd >= 0 as 0 is also a valid
index. This fixes issue where submission path hangs when WQ size is 1.

Fixes: 0705107fcc ("dmaengine: idxd: move submission to sbitmap_queue")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162697645067.3478714.506720687816951762.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-26 14:08:58 +02:00
arch
um: virtio_uml: fix memory leak on init failures
2021-09-26 14:08:57 +02:00
block
block, bfq: honor already-setup queue merges
2021-09-22 12:28:01 +02:00
certs
certs: Trigger creation of RSA module signing key if it's not an RSA key
2021-09-15 09:50:29 +02:00
crypto
crypto: sm2 - fix a memory leak in sm2
2021-07-14 16:56:06 +02:00
Documentation
dt-bindings: mtd: gpmc: Fix the ECC bytes vs. OOB bytes equation
2021-09-22 12:27:59 +02:00
drivers
dmaengine: idxd: fix wq slot allocation index check
2021-09-26 14:08:58 +02:00
fs
nilfs2: use refcount_dec_and_lock() to fix potential UAF
2021-09-26 14:08:57 +02:00
include
x86/mce: Avoid infinite loop for copy from user recovery
2021-09-22 12:28:07 +02:00
init
sched/core: Initialize the idle task with preemption disabled
2021-07-14 16:55:50 +02:00
ipc
ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
2021-05-26 12:06:54 +02:00
kernel
profiling: fix shift-out-of-bounds bugs
2021-09-26 14:08:58 +02:00
lib
lib/test_stackinit: Fix static initializer test
2021-09-18 13:40:37 +02:00
LICENSES
LICENSES/deprecated: add Zlib license text
2020-09-16 14:33:49 +02:00
mm
mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()
2021-09-22 12:27:59 +02:00
net
9p/trans_virtio: Remove sysfs file on probe failure
2021-09-26 14:08:57 +02:00
samples
samples: bpf: Fix tracex7 error raised on the missing argument
2021-09-18 13:40:23 +02:00
scripts
gen_compile_commands: fix missing 'sys' package
2021-09-22 12:27:58 +02:00
security
Smack: Fix wrong semantics in smk_access_entry()
2021-09-18 13:40:18 +02:00
sound
ASoC: rockchip: i2s: Fixup config for DAIFMT_DSP_A/B
2021-09-18 13:40:33 +02:00
tools
perf tools: Allow build-id with trailing zeros
2021-09-26 14:08:57 +02:00
usr
Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-08-07 13:29:39 -07:00
virt
KVM: Do not leak memory for duplicate debugfs directories
2021-08-12 13:22:17 +02:00
.clang-format
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
2020-10-17 11:18:18 -07:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
kbuild: generate Module.symvers only when vmlinux exists
2021-05-19 10:12:59 +02:00
.mailmap
mailmap: add two more addresses of Uwe Kleine-König
2020-12-06 10:19:07 -08:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Jason Cooper to CREDITS
2020-11-30 10:20:34 +01:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
f2fs: move ioctl interface definitions to separated file
2021-05-19 10:13:00 +02:00
Makefile
Linux 5.10.68
2021-09-22 12:28:07 +02:00
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.
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