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daemon/ProcessEvent: make sure to cancel the contexts 

Reported by govet linter:

> daemon/monitor.go:57:9: lostcancel: the cancel function returned by context.WithTimeout should be called, not discarded, to avoid a context leak (govet)
> 			ctx, _ := context.WithTimeout(context.Background(), 2*time.Second)
> 			     ^
> daemon/monitor.go:128:9: lostcancel: the cancel function returned by context.WithTimeout should be called, not discarded, to avoid a context leak (govet)
> 			ctx, _ := context.WithTimeout(context.Background(), 2*time.Second)
> 			     ^

Fixes: b5f288 ("Handle blocked I/O of exec'd processes")
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This commit is contained in:
Kir Kolyshkin 2019-08-05 19:18:54 -07:00
parent 86dad145e9
commit 53cbf1797b
1 changed files with 4 additions and 3 deletions
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7
daemon/monitor.go
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@ -54,9 +54,9 @@ func (daemon *Daemon) ProcessEvent(id string, e libcontainerdtypes.EventType, ei
if err != nil {
logrus.WithError(err).Warnf("failed to delete container %s from containerd", c.ID)
}
ctx, _ := context.WithTimeout(context.Background(), 2*time.Second)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
c.StreamConfig.Wait(ctx)
cancel()
c.Reset(false)
exitStatus := container.ExitStatus{
@ -125,8 +125,9 @@ func (daemon *Daemon) ProcessEvent(id string, e libcontainerdtypes.EventType, ei
execConfig.ExitCode = &ec
execConfig.Running = false
ctx, _ := context.WithTimeout(context.Background(), 2*time.Second)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
execConfig.StreamConfig.Wait(ctx)
cancel()
if err := execConfig.CloseStreams(); err != nil {
logrus.Errorf("failed to cleanup exec %s streams: %s", c.ID, err)