[dts] [PATCH V1]framework/dut: fix parameter error on some OS

[Lijuan Tu]

Virtual test is only support linux now.
Framework not support freebsd

Signed-off-by: Lijuan Tu <lijuanx.a.tu at intel.com>
---
 framework/dut.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/framework/dut.py b/framework/dut.py
index 9cbdaf7..0cc45dd 100644
--- a/framework/dut.py
+++ b/framework/dut.py
@@ -820,6 +820,9 @@ class Dut(Crb):
 
     def destroy_all_sriov_vfs(self):
 
+        # virtual test is only support linux now.
+        if self.get_os_type() != "linux":
+
         if self.ports_info == None:
             return
         for port_id in range(len(self.ports_info)):
-- 
1.9.3