fix(core): wrong to unbind driver if pci device in unbinded driver state

[csit.git] / resources / libraries / python / DUTSetup.py

diff --git a/resources/libraries/python/DUTSetup.py b/resources/libraries/python/DUTSetup.py
index 419a4e2..7eb1918 100644 (file)
--- 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