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Wan Jiabing 2a6b52ed72 rtla: Avoid record NULL pointer dereference
Fix the following null/deref_null.cocci errors:
./tools/tracing/rtla/src/osnoise_hist.c:870:31-36: ERROR: record is NULL but dereferenced.
./tools/tracing/rtla/src/osnoise_top.c:650:31-36: ERROR: record is NULL but dereferenced.
./tools/tracing/rtla/src/timerlat_hist.c:905:31-36: ERROR: record is NULL but dereferenced.
./tools/tracing/rtla/src/timerlat_top.c:700:31-36: ERROR: record is NULL but dereferenced.

"record" is NULL before calling osnoise_init_trace_tool.
Add a tag "out_free" to avoid dereferring a NULL pointer.

Link: https://lkml.kernel.org/r/ae0e4500d383db0884eb2820286afe34ca303778.1651247710.git.bristot@kernel.org
Link: https://lore.kernel.org/r/20220408151406.34823-1-wanjiabing@vivo.com/

Cc: kael_w@yeah.net
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Fixes: 51d64c3a18 ("rtla: Add -e/--event support")
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-05-26 15:18:28 -04:00
arch Driver core changes for 5.18-rc2 2022-04-10 09:55:09 -10:00
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Documentation rtla/Makefile: Properly handle dependencies 2022-05-26 15:17:48 -04:00
drivers Serial driver fix for 5.18-rc2 2022-04-10 10:08:50 -10:00
fs Driver core changes for 5.18-rc2 2022-04-10 09:55:09 -10:00
include Driver core changes for 5.18-rc2 2022-04-10 09:55:09 -10:00
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kernel - A couple of fixes to cgroup-related handling of perf events 2022-04-10 07:08:22 -10:00
lib Driver core changes for 5.18-rc2 2022-04-10 09:55:09 -10:00
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mm - Allow the compiler to optimize away unused percpu accesses and change 2022-04-10 06:56:46 -10:00
net NFS client bugfixes for Linux 5.18 2022-04-08 07:39:17 -10:00
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tools rtla: Avoid record NULL pointer dereference 2022-05-26 15:18:28 -04:00
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.mailmap mailmap: update Vasily Averin's email address 2022-04-08 14:20:36 -10:00
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MAINTAINERS v5.18 first rc pull request 2022-04-08 18:29:02 -10:00
Makefile Linux 5.18-rc2 2022-04-10 14:21:36 -10:00
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.