Skip bonding if /sys/class/net/bonding_masters doesn't exist (Shigeki Sakamoto)

src/virtManager/connection.py

@@ -151,6 +151,7 @@ class vmmConnection(gobject.GObject):
             # find all bonding master devices and register them
             # XXX bonding stuff is linux specific
             bondMasters = self._net_get_bonding_masters()
+            if bondMasters is not None:
                 for bond in bondMasters:
                     sysfspath = "/sys/class/net/" + bond
                     mac = self._net_get_mac_address(bond, sysfspath)
@@ -896,6 +897,7 @@ class vmmConnection(gobject.GObject):
 
     def _net_get_bonding_masters(self):
         masters = []
+        if os.path.exists("/sys/class/net/bonding_masters"):
             f = open("/sys/class/net/bonding_masters")
             while True:
                 rline = f.readline()
@@ -904,6 +906,8 @@ class vmmConnection(gobject.GObject):
                 rline = rline.strip("\n\t")
                 masters = rline[:-1].split(' ')
             return masters
+        else:
+            return None
 
     def _net_is_bonding_slave(self, name, sysfspath):
         masterpath = sysfspath + "/master"