333             .map_err(DeviceRegistrationError::AllocateDeviceAddrs)?;  in generate_pci_root()
342             .map_err(DeviceRegistrationError::AllocateIoAddrs)?;  in generate_pci_root()
351             .map_err(DeviceRegistrationError::AllocateDeviceAddrs)?;  in generate_pci_root()
360         let irqfd = Event::new().map_err(DeviceRegistrationError::EventCreate)?;  in generate_pci_root()
361         let irq_resample_fd = Event::new().map_err(DeviceRegistrationError::EventCreate)?;  in generate_pci_root()
382             .map_err(DeviceRegistrationError::RegisterIrqfd)?;  in generate_pci_root()
392             .map_err(DeviceRegistrationError::RegisterDeviceCapabilities)?;  in generate_pci_root()
396                 .map_err(DeviceRegistrationError::RegisterIoevent)?;  in generate_pci_root()
401                 .map_err(DeviceRegistrationError::ProxyDeviceCreation)?;  in generate_pci_root()
412                 .map_err(DeviceRegistrationError::MmioInsert)?;  in generate_pci_root()
418                 .map_err(DeviceRegistrationError::MmioInsert)?;  in generate_pci_root()
452         .map_err(DeviceRegistrationError::AllocateIoResource)?;  in add_goldfish_battery()
454     let irq_evt = Event::new().map_err(DeviceRegistrationError::EventCreate)?;  in add_goldfish_battery()
455     let irq_resample_evt = Event::new().map_err(DeviceRegistrationError::EventCreate)?;  in add_goldfish_battery()
459         .map_err(DeviceRegistrationError::RegisterIrqfd)?;  in add_goldfish_battery()
462         Tube::pair().map_err(DeviceRegistrationError::CreateTube)?;  in add_goldfish_battery()
479     .map_err(DeviceRegistrationError::RegisterBattery)?;  in add_goldfish_battery()
490                             .map_err(DeviceRegistrationError::ProxyDeviceCreation)?,  in add_goldfish_battery()
495                 .map_err(DeviceRegistrationError::MmioInsert)?;  in add_goldfish_battery()
504                 .map_err(DeviceRegistrationError::MmioInsert)?;  in add_goldfish_battery()
552     let size = image.seek(SeekFrom::End(0)).map_err(LoadImageError::Seek)?;  in load_image()
563         .map_err(LoadImageError::Seek)?;  in load_image()
567         .map_err(LoadImageError::ReadToMemory)?;  in load_image()
599     let size = image.seek(SeekFrom::End(0)).map_err(LoadImageError::Seek)?;  in load_image_high()
607         .map_err(LoadImageError::Seek)?;  in load_image_high()
618         .map_err(LoadImageError::ReadToMemory)?;  in load_image_high()