id: unlock-in-loop
valid:
  - |
    func good() {
        mu.Lock()
        defer mu.Unlock()
        for _, item := range items {
            process(item)
        }
    }
invalid:
  - |
    func bad() {
        for _, item := range items {
            mu.Lock()
            process(item)
            mu.Unlock()
        }
    }