Fix potential containerd panic during graceful shutdown.

Random-Liu · Random-Liu · commit dd24d76a1383 · 2019-09-01T22:11:20.000-07:00
Signed-off-by: Lantao Liu &lt;lantaol@google.com&gt;
diff --git a/cmd/containerd/command/main_unix.go b/cmd/containerd/command/main_unix.go
@@ -58,6 +58,7 @@ func handleSignals(ctx context.Context, signals chan os.Signal, serverC chan *se
 					}
 					server.Stop()
 					close(done)
+					return
 				}
 			}
 		}

Original file line number	Diff line number	Diff line change
`@@ -58,6 +58,7 @@ func handleSignals(ctx context.Context, signals chan os.Signal, serverC chan *se`
`58`	`58`	`}`
`59`	`59`	`server.Stop()`
`60`	`60`	`close(done)`
	`61`	`+ return`
`61`	`62`	`}`
`62`	`63`	`}`
`63`	`64`	`}`