linux-kernel - [PATCH 1/1] selftest: fib_tests: Always cleanup before exit

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Date:   Mon, 20 Feb 2023 12:04:00 +0100
From:   Roxana Nicolescu <roxana.nicolescu@...onical.com>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, shuah@...nel.org
Cc:     netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] selftest: fib_tests: Always cleanup before exit

Usage of `set -e` before executing a command causes immediate exit
on failure, without cleanup up the resources allocated at setup.
This can affect the next tests that use the same resources,
leading to a chain of failures.

A simple fix is to always call cleanup function when the script exists.
This approach is already used by other existing tests.

Fixes: 1056691b2680 ("selftests: fib_tests: Make test results more verbose")
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@...onical.com>
---
 tools/testing/selftests/net/fib_tests.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index 5637b5dadabd..70ea8798b1f6 100755
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -2065,6 +2065,8 @@ EOF
 ################################################################################
 # main
 
+trap cleanup EXIT
+
 while getopts :t:pPhv o
 do
 	case $o in
-- 
2.34.1