fix return

liuxiaolong

2019-12-06 b6bfa60e5a6198550232aa4e1fb2b927ca8f8b25

fix return

 controllers/camera.go

@@ -351,6 +351,7 @@
                    "cameraId": cid,
                    "snapshotUrl": file.SnapshotUrl,
                })
                return
            } else {
                util.ResponseFormat(c, code.ComError, "更新失败")
                return