Fix potential containerd panic.

Signed-off-by: Lantao Liu <lantaol@google.com>
2019-02-05 00:38:02 -08:00
parent ca65dc9316
commit 7bd8dcd0d3
2 changed files with 9 additions and 5 deletions
--- a/task.go
+++ b/task.go
@@ -189,8 +189,10 @@ func (t *task) Start(ctx context.Context) error {
 		ContainerID: t.id,
 	})
 	if err != nil {
-		t.io.Cancel()
-		t.io.Close()
+		if t.io != nil {
+			t.io.Cancel()
+			t.io.Close()
+		}
 		return errdefs.FromGRPC(err)
 	}
 	t.pid = r.Pid