[PATCH 3/5] Netperf: fix ret_code check when netperf gets interrupted

[Jan Tluka]

The ret_code might be undefined when SIGINT is sent to the test module.

Signed-off-by: Jan Tluka 
---
 test_modules/Netperf.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test_modules/Netperf.py b/test_modules/Netperf.py
index 67d63f3..7c2d1fb 100644
--- a/test_modules/Netperf.py
+++ b/test_modules/Netperf.py
@@ -391,6 +391,7 @@ class Netperf(TestGeneric):
                 clients.append(ShellProcess(cmd))

for client in clients:
+                ret_code = None
                 try:
                     ret_code = client.wait()
                     rv += ret_code
@@ -401,7 +402,7 @@ class Netperf(TestGeneric):
                 output = client.read_nonblocking()
                 logging.debug(output)

-                if ret_code == 0:
+                if ret_code and ret_code == 0:
                     client_results.append(self._parse_output(output))

if len(client_results) > 0: