[OEM-5.6][SRU][PATCH 1/1] selftests: fib_nexthop_multiprefix: fix cleanup() netns deletion

[Po-Hsu Lin]

From: Paolo Pisati <paolo.pisati at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/1880648

During setup():
...
        for ns in h0 r1 h1 h2 h3
        do
                create_ns ${ns}
        done
...

while in cleanup():
...
        for n in h1 r1 h2 h3 h4
        do
                ip netns del ${n} 2>/dev/null
        done
...

and after removing the stderr redirection in cleanup():

$ sudo ./fib_nexthop_multiprefix.sh
...
TEST: IPv4: host 0 to host 3, mtu 1400                              [ OK ]
TEST: IPv6: host 0 to host 3, mtu 1400                              [ OK ]
Cannot remove namespace file "/run/netns/h4": No such file or directory
$ echo $?
1

and a non-zero return code, make kselftests fail (even if the test
itself is fine):

...
not ok 34 selftests: net: fib_nexthop_multiprefix.sh # exit=1
...

Signed-off-by: Paolo Pisati <paolo.pisati at canonical.com>
Reviewed-by: David Ahern <dsahern at gmail.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
(cherry picked from commit f59f6acc33b3c6655314b2609fa3033aaeaaceee)
Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
---
 tools/testing/selftests/net/fib_nexthop_multiprefix.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/fib_nexthop_multiprefix.sh b/tools/testing/selftests/net/fib_nexthop_multiprefix.sh
index 9dc35a1..51df5e3 100755
--- a/tools/testing/selftests/net/fib_nexthop_multiprefix.sh
+++ b/tools/testing/selftests/net/fib_nexthop_multiprefix.sh
@@ -144,7 +144,7 @@ setup()
 
 cleanup()
 {
-	for n in h1 r1 h2 h3 h4
+	for n in h0 r1 h1 h2 h3
 	do
 		ip netns del ${n} 2>/dev/null
 	done
-- 
2.7.4