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Merge pull request #66719 from hanxiaoshuai/fix0727 

Automatic merge from submit-queue (batch tested with PRs 67938, 66719, 67883). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

return err when Unmarshal failed

**What this PR does / why we need it**:
return err when Unmarshal failed
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
pull/8/head
Kubernetes Submit Queue 2018-08-28 10:02:05 -07:00 committed by GitHub
parent b5382c347e 6c94d7ae32
commit 256070adcf
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 1 deletions
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4
pkg/kubectl/rollback.go
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@ -418,7 +418,9 @@ func getStatefulSetPatch(set *appsv1.StatefulSet) ([]byte, error) {
return nil, err
}
var raw map[string]interface{}
json.Unmarshal([]byte(str), &raw)
if err := json.Unmarshal([]byte(str), &raw); err != nil {
return nil, err
}
objCopy := make(map[string]interface{})
specCopy := make(map[string]interface{})
spec := raw["spec"].(map[string]interface{})