fgraph: Use guard(mutex)(&ftrace_lock) for unregister_ftrace_graph()

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The ftrace_lock is held throughout unregister_ftrace_graph(), use a guard
to simplify the error paths.

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>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/20241028071307.770550792@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

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Steven Rostedt 2024-10-28 03:12:29 -04:00 • committed by Steven Rostedt (Google)

parent 434098485b

commit 6348a3fa72

1 changed files with 4 additions and 6 deletions

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kernel/trace/fgraph.c

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