[PATCH 3/3 linux-next] selftests: netfilter: kill running process only

[Fabian Frederick]

Avoid noise like the following:
nft_flowtable.sh: line 250: kill: (4691) - No such process

Signed-off-by: Fabian Frederick <f...@skynet.be>
---
 tools/testing/selftests/netfilter/nft_flowtable.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/netfilter/nft_flowtable.sh 
b/tools/testing/selftests/netfilter/nft_flowtable.sh
index e98cac6f8bfdd..a47d1d8322104 100755
--- a/tools/testing/selftests/netfilter/nft_flowtable.sh
+++ b/tools/testing/selftests/netfilter/nft_flowtable.sh
@@ -250,8 +250,14 @@ test_tcp_forwarding_ip()
 
        sleep 3
 
-       kill $lpid
-       kill $cpid
+       if ps -p $lpid > /dev/null;then
+               kill $lpid
+       fi
+
+       if ps -p $cpid > /dev/null;then
+               kill $cpid
+       fi
+
        wait
 
        check_transfer "$ns1in" "$ns2out" "ns1 -> ns2"
-- 
2.27.0