[dts] [PATCH] fix cannot get output bug of ieee1588

[xu,huilong]

From: haifeng <haifengx.tang at intel.com>

Signed-off-by: haifeng <haifengx.tang at intel.com>
---
 tests/TestSuite_ieee1588.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/TestSuite_ieee1588.py b/tests/TestSuite_ieee1588.py
index e23f8fb..723ca40 100644
--- a/tests/TestSuite_ieee1588.py
+++ b/tests/TestSuite_ieee1588.py
@@ -99,7 +99,8 @@ class TestIeee1588(TestCase):
         # self.verify("\\x00\\x02" in out, "Payload wrong in PTP")
 
         time.sleep(1)
-        out = self.dut.send_expect("stop", "testpmd> ")
+        out = self.dut.get_session_output()
+        self.dut.send_expect("stop", "testpmd> ")
 
         text = dts.regexp(out, "(.*) by hardware")
         self.verify("IEEE1588 PTP V2 SYNC" in text, "Not filtered " + text)
-- 
1.9.3