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distribution: registry: do not access the errors slice if it's empty

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Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This commit is contained in:
Antonio Murdaca 2016-03-08 15:56:16 +01:00
parent 831238928c
commit 0186f4d422
2 changed files with 5 additions and 2 deletions
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3
CHANGELOG.md
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@ -16,7 +16,8 @@ be found.
### Distribution
- Fix a crash when pushing multiple images sharing the same layers to the same repository in parallel [#20831](https://github.com/docker/docker/pull/20831)
- Fix a crash when pushing multiple images sharing the same layers to the same repository in parallel [#20831](https://github.com/docker/docker/pull/20831)
- Fix a panic when pushing images to a registry which uses a misconfigured token service [#21030](https://github.com/docker/docker/pull/21030)
### Plugin system

4
distribution/registry.go
View file

@ -140,7 +140,9 @@ func (th *existingTokenHandler) AuthorizeRequest(req *http.Request, params map[s
func retryOnError(err error) error {
switch v := err.(type) {
case errcode.Errors:
return retryOnError(v[0])
if len(v) != 0 {
return retryOnError(v[0])
}
case errcode.Error:
switch v.Code {
case errcode.ErrorCodeUnauthorized, errcode.ErrorCodeUnsupported, errcode.ErrorCodeDenied: