X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=resources%2Flibraries%2Fpython%2FDUTSetup.py;h=7eb19185e6b970095740867f28f90d6b4c972010;hb=b58b33c32f799c746bf90272519e8b1d3f78bc65;hp=419a4e291fa171b68aaec71b828fa7c0cf29d5aa;hpb=1afc013a4e893590407574f1a71f60ec03ff0d4e;p=csit.git

diff --git a/resources/libraries/python/DUTSetup.py b/resources/libraries/python/DUTSetup.py
index 419a4e291f..7eb19185e6 100644
--- a/resources/libraries/python/DUTSetup.py
+++ b/resources/libraries/python/DUTSetup.py
@@ -442,8 +442,10 @@ class DUTSetup:
         :type pci_addrs: list
         """
         for pci_addr in pci_addrs:
-            if not driver or \
-                    DUTSetup.get_pci_dev_driver(node, pci_addr) != driver:
+            cur_driver = DUTSetup.get_pci_dev_driver(node, pci_addr)
+            if not cur_driver:
+                return
+            if not driver or cur_driver != driver:
                 DUTSetup.pci_driver_unbind(node, pci_addr)
 
     @staticmethod