From c5b6e916e4ed2e0a7194c8f1f5e8fe0ca2b10c1e Mon Sep 17 00:00:00 2001
From: Yong-an Lu <yongan.lu@intel.com>
Date: Wed, 9 Nov 2022 09:19:22 +0800
Subject: [PATCH] hijack: roll back signal before func_exit_handler

if any function inside func_exit_handle calls exit indirectly, it will lead
to infinity recursive calls. Roll back the signal in the beginning of the
handler to avoid such cases.

Signed-off-by: Yong-an Lu <yongan.lu@intel.com>
---
 case-lib/hijack.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/case-lib/hijack.sh b/case-lib/hijack.sh
index c9d1c84e..ca4a1257 100644
--- a/case-lib/hijack.sh
+++ b/case-lib/hijack.sh
@@ -6,6 +6,9 @@ trap 'func_exit_handler $?' EXIT
 # Overwrite other functions' exit to perform environment cleanup
 function func_exit_handler()
 {
+    # roll back signal to avoid infinity recursive calls
+    trap '' EXIT
+
     local exit_status=${1:-0}
 
     # call trace