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tracing/eprobe: Fix to release eprobe when failed to add dyn_event

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[ Upstream commit 494b332064c0ce2f7392fa92632bc50191c1b517 ]

Fix eprobe event to unregister event call and release eprobe when it fails
to add dynamic event correctly.

Link: https://lore.kernel.org/all/173289886698.73724.1959899350183686006.stgit@devnote2/

Fixes: 7491e2c442 ("tracing: Add a probe that attaches to trace events")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Masami Hiramatsu (Google)
2024-11-30 01:47:47 +09:00
committed by Greg Kroah-Hartman
parent 07bc1978d5
commit 364dc8070b
1 changed files with 5 additions and 0 deletions
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5
kernel/trace/trace_eprobe.c
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@@ -963,6 +963,11 @@ static int __trace_eprobe_create(int argc, const char *argv[])
goto error;
}
ret = dyn_event_add(&ep->devent, &ep->tp.event->call);
if (ret < 0) {
trace_probe_unregister_event_call(&ep->tp);
mutex_unlock(&event_mutex);
goto error;
}
mutex_unlock(&event_mutex);
return ret;
parse_error: