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Miaoqian Lin 9937e8daab perf python: Fix NULL vs IS_ERR_OR_NULL() checking 
The function trace_event__tp_format_id may return ERR_PTR(-ENOMEM).  Use
IS_ERR_OR_NULL to check tp_format.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20211211053856.19827-1-linmq006@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-11 08:23:54 -03:00
arch
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2021-12-10 14:09:12 -08:00
block
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2021-12-08 16:06:44 -08:00
certs
certs: Add support for using elliptic curve keys for signing modules
2021-08-23 19:55:42 +03:00
crypto
Merge tag 'zstd-for-linus-v5.16' of git://github.com/terrelln/linux
2021-11-13 15:32:30 -08:00
Documentation
Merge tag 'sound-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2021-12-10 11:43:00 -08:00
drivers
Merge tag 'thermal-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2021-12-10 17:02:46 -08:00
fs
Merge tag 'for-5.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2021-12-10 17:28:02 -08:00
include
Merge tag 'pm-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2021-12-10 14:36:06 -08:00
init
kbuild: Fix -Wimplicit-fallthrough=5 error for GCC 5.x and 6.x
2021-11-14 18:59:49 -08:00
ipc
shm: extend forced shm destroy to support objects from several IPC nses
2021-11-20 10:35:54 -08:00
kernel
Merge tag 'trace-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2021-12-10 14:24:05 -08:00
lib
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2021-12-08 16:06:44 -08:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2021-12-08 16:06:44 -08:00
net
net/sched: fq_pie: prevent dismantle issue
2021-12-09 08:01:00 -08:00
samples
ftrace/samples: Add module to test multi direct modify interface
2021-12-09 13:02:44 -05:00
scripts
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2021-11-24 09:44:13 -08:00
security
selinux: fix NULL-pointer dereference when hashtab allocation fails
2021-11-19 16:11:39 -05:00
sound
Merge tag 'sound-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2021-12-10 11:43:00 -08:00
tools
perf python: Fix NULL vs IS_ERR_OR_NULL() checking
2021-12-11 08:23:54 -03:00
usr
initramfs: Check timestamp to prevent broken cpio archive
2021-10-24 13:48:40 +09:00
virt
KVM: downgrade two BUG_ONs to WARN_ON_ONCE
2021-11-26 06:43:28 -05:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.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
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
MAINTAINERS: update email address of Christian Borntraeger
2021-11-18 17:50:54 +01:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Daniel Drake to credits
2021-09-21 08:34:58 +03:00
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
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
2021-12-09 13:20:59 -08:00
Makefile
Makefile: Do not quote value for CONFIG_CC_IMPLICIT_FALLTHROUGH
2021-12-06 16:42:47 -08:00
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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