No need to disable errexit temporary, simply ignore the only possible
and not handled error.

Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
 tools/testing/selftests/net/lib.sh | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh
index 9155c914c064..b2572aff6286 100644
--- a/tools/testing/selftests/net/lib.sh
+++ b/tools/testing/selftests/net/lib.sh
@@ -128,25 +128,17 @@ slowwait_for_counter()
 cleanup_ns()
 {
 	local ns=""
-	local errexit=0
 	local ret=0
 
-	# disable errexit temporary
-	if [[ $- =~ "e" ]]; then
-		errexit=1
-		set +e
-	fi
-
 	for ns in "$@"; do
 		[ -z "${ns}" ] && continue
-		ip netns delete "${ns}" &> /dev/null
+		ip netns delete "${ns}" &> /dev/null || true
 		if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then
 			echo "Warn: Failed to remove namespace $ns"
 			ret=1
 		fi
 	done
 
-	[ $errexit -eq 1 ] && set -e
 	return $ret
 }
 

-- 
2.43.0