tracing: Have add_tracer_options() error pass up to callers

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The function add_tracer_options() can fail, but currently it is ignored.
Pass the status of add_tracer_options() up to adding a new tracer as well
as when an instance is created. Have the instance creation fail if the
add_tracer_options() fail.

Only print a warning for the top level instance, like it does with other
failures.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://patch.msgid.link/20251105161935.375299297@kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

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Steven Rostedt 2025-11-05 11:19:11 -05:00 • committed by Steven Rostedt (Google)

parent c7bed15ccf

commit 5aa0d18df0

1 changed files with 34 additions and 21 deletions

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kernel/trace/trace.c

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