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-rw-r--r--tools/python/xen/util/blkif.py2
-rw-r--r--tools/python/xen/xend/server/blkif.py2
2 files changed, 2 insertions, 2 deletions
diff --git a/tools/python/xen/util/blkif.py b/tools/python/xen/util/blkif.py
index 06d5e166a1..859361970c 100644
--- a/tools/python/xen/util/blkif.py
+++ b/tools/python/xen/util/blkif.py
@@ -52,7 +52,7 @@ def blkdev_segment(name):
"""
val = None
n = blkdev_name_to_number(name)
- if n:
+ if not n is None:
val = { 'device' : n,
'start_sector' : long(0),
'nr_sectors' : long(1L<<63),
diff --git a/tools/python/xen/xend/server/blkif.py b/tools/python/xen/xend/server/blkif.py
index dd788da10d..6bd49acfc9 100644
--- a/tools/python/xen/xend/server/blkif.py
+++ b/tools/python/xen/xend/server/blkif.py
@@ -80,7 +80,7 @@ class BlkifController(DevController):
'acm_policy' : policy})
devid = blkif.blkdev_name_to_number(dev)
- if not devid:
+ if devid is None:
raise VmError('Unable to find number for device (%s)' % (dev))
front = { 'virtual-device' : "%i" % devid,