[PATCH] Protect against tracebacks from the partition isFoo properties.

[David Lehman <dlehman redhat com>]

This just prevents us from trying to use self.partType if it is None.
---
 storage/devices.py |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/storage/devices.py b/storage/devices.py
index 53c3d83..c6fbdcc 100644
--- a/storage/devices.py
+++ b/storage/devices.py
@@ -997,19 +997,23 @@ class PartitionDevice(StorageDevice):
 
     @property
     def isExtended(self):
-        return self.partType & parted.PARTITION_EXTENDED
+        return (self.partType is not None and
+                self.partType & parted.PARTITION_EXTENDED)
 
     @property
     def isLogical(self):
-        return self.partType & parted.PARTITION_LOGICAL
+        return (self.partType is not None and
+                self.partType & parted.PARTITION_LOGICAL)
 
     @property
     def isPrimary(self):
-        return self.partType == parted.PARTITION_NORMAL
+        return (self.partType is not None and
+                self.partType == parted.PARTITION_NORMAL)
 
     @property
     def isProtected(self):
-        return self.partType & parted.PARTITION_PROTECTED
+        return (self.partType is not None and
+                self.partType & parted.PARTITION_PROTECTED)
 
     def _getPartedPartition(self):
         return self._partedPartition
-- 
1.6.0.6