File 0592-avoid-crash-when-tracer-erts_tracer_nil.patch of Package erlang

From 4a02b68b796df5fb80aaaa8b60139b6d68ef70c3 Mon Sep 17 00:00:00 2001
From: Zeyu Zhang <zeyu@fb.com>
Date: Tue, 22 Nov 2022 09:27:24 -0800
Subject: [PATCH] avoid crash when tracer = erts_tracer_nil

---
 erts/emulator/beam/erl_trace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index ec62e137d8..82d4cf728c 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -2633,6 +2633,9 @@ lookup_tracer_nif(const ErtsTracer tracer)
 {
     ErtsTracerNif tnif_tmpl;
     ErtsTracerNif *tnif;
+    if (tracer == erts_tracer_nil) {
+        return NULL;
+    }
     tnif_tmpl.module = ERTS_TRACER_MODULE(tracer);
     ERTS_LC_ASSERT(erts_thr_progress_lc_is_delaying() || erts_get_scheduler_id() > 0);
     erts_rwmtx_rlock(&tracer_mtx);
-- 
2.35.3