tracing: probes: Use __free() for trace_probe_log

Use __free() for trace_probe_log_clear() to cleanup error log interface.

Link: https://lore.kernel.org/all/175509538609.193596.16646724647358218778.stgit@devnote2/

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 5cbdc423afeb..5b92376a58fc 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -156,7 +156,7 @@ fail:
 static struct trace_probe_log trace_probe_log;
 extern struct mutex dyn_event_ops_mutex;
 
-void trace_probe_log_init(const char *subsystem, int argc, const char **argv)
+const char *trace_probe_log_init(const char *subsystem, int argc, const char **argv)
 {
 	lockdep_assert_held(&dyn_event_ops_mutex);
 
@@ -164,6 +164,7 @@ void trace_probe_log_init(const char *subsystem, int argc, const char **argv)
 	trace_probe_log.argc = argc;
 	trace_probe_log.argv = argv;
 	trace_probe_log.index = 0;
+	return subsystem;
 }
 
 void trace_probe_log_clear(void)