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[MOD] fix a bug.if node is nil will get an panic.

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This commit is contained in:
张远浩 2016-04-11 18:17:22 +08:00
parent c67aee7012
commit 7a7f4cecbb
1 changed files with 1 additions and 1 deletions
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2
go/topology/node.go
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@ -211,8 +211,8 @@ func (n *NodeImpl) LinkChildNode(node Node) {
func (n *NodeImpl) UnlinkChildNode(nodeId NodeId) {
node := n.children[nodeId]
node.SetParent(nil)
if node != nil {
node.SetParent(nil)
delete(n.children, node.Id())
n.UpAdjustVolumeCountDelta(-node.GetVolumeCount())
n.UpAdjustActiveVolumeCountDelta(-node.GetActiveVolumeCount())