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Masami Hiramatsu (Google) 0684b1254b tracing/events: Fix to check the simple_tsk_fn creation 
[ Upstream commit cda1fbfc53 ]

Sashiko pointed that this sample code does not correctly handle the
failure of thread creation because kthread_run() can return -errno.

Check the simple_tsk_fn is correctly initialized (created) or not.

Link: https://lore.kernel.org/all/178165817322.269421.3992299509400184196.stgit@devnote2/

Link: https://sashiko.dev/#/patchset/178092865666.163648.10457567771536160909.stgit%40devnote2

Fixes: 9cfe06f8cd ("tracing/events: add trace-events-sample")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-07-24 15:51:42 +02:00
..
acrn sample/acrn: Introduce a sample of HSM ioctl interface usage 2021-02-09 10:58:19 +01:00
auxdisplay .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
binderfs .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
bpf samples/bpf: Fix compilation failure for samples/bpf on LoongArch Fedora 2025-06-04 14:37:54 +02:00
configfs treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
connector .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
fanotify Add gitignore file for samples/fanotify/ subdirectory 2024-07-27 10:46:16 +02:00
ftrace tracing: samples: Initialize trace_array_printk() with the correct function 2025-05-22 14:08:25 +02:00
hidraw .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
hw_breakpoint samples/hw_breakpoint: fix building without module unloading 2023-09-23 11:10:01 +02:00
kdb kdb: Rename members of struct kdbtab_t 2021-07-27 17:05:06 +01:00
kfifo kfifo: fix ternary sign extension bugs 2021-04-30 11:20:35 -07:00
kmemleak mm,kmemleak-test.c: move kmemleak-test.c to samples dir 2020-10-13 18:38:27 -07:00
kobject treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
kprobes samples/kretprobes: Fix return value if register_kretprobe() failed 2021-11-18 19:16:42 +01:00
landlock samples/landlock: Fix possible NULL dereference in parse_path() 2025-03-13 12:49:57 +01:00
livepatch livepatch: Handle allocation failure in the sample of shadow variable API 2020-01-17 11:12:06 +01:00
mei samples: mei: Fix building on musl libc 2025-08-28 16:24:07 +02:00
nitro_enclaves .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
pidfd .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
pktgen samples: pktgen: correct dev to DEV 2024-12-14 19:50:35 +01:00
qmi samples: qmi: Constify static qmi ops 2020-11-24 17:08:47 -06:00
rpmsg samples/rpmsg: Introduce a module parameter for message count 2019-08-26 22:10:39 -07:00
seccomp .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
timers .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
trace_events tracing/events: Fix to check the simple_tsk_fn creation 2026-07-24 15:51:42 +02:00
trace_printk samples/trace_printk: Wait for IRQ work to finish 2019-12-21 16:08:22 -05:00
uhid kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
v4l media: rename VFL_TYPE_GRABBER to _VIDEO 2020-02-24 16:52:39 +01:00
vfio-mdev samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() 2022-12-31 13:14:31 +01:00
vfs .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
watch_queue .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
watchdog .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
Kconfig samples: Make fs-monitor depend on libc and headers 2024-07-27 10:46:16 +02:00
Makefile samples: Add fs error monitoring example 2024-07-27 10:46:16 +02:00