diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2024-10-28 03:12:32 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-10-29 07:43:02 -0400 |
| commit | 9687bbf219549fc93f2364c78aa91fd9ffc9eca0 (patch) | |
| tree | cbe1eba83f3eeb1d4abffebcc1036d9185fd249f /kernel/trace | |
| parent | 1432afb50de460e56ad90938a7bb42b6128790e6 (diff) | |
ftrace: Use guard to take the ftrace_lock in release_probe()
The ftrace_lock is held throughout the entire release_probe() function.
Use guard to simplify any exit 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/20241028071308.250787901@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/ftrace.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 64997416415e..c0fabd7da5b2 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -5288,7 +5288,7 @@ static void release_probe(struct ftrace_func_probe *probe) { struct ftrace_probe_ops *probe_ops; - mutex_lock(&ftrace_lock); + guard(mutex)(&ftrace_lock); WARN_ON(probe->ref <= 0); @@ -5306,7 +5306,6 @@ static void release_probe(struct ftrace_func_probe *probe) list_del(&probe->list); kfree(probe); } - mutex_unlock(&ftrace_lock); } static void acquire_probe_locked(struct ftrace_func_probe *probe) |