diff options
| -rw-r--r-- | devices/src/usb/xhci/xhci_transfer.rs | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/devices/src/usb/xhci/xhci_transfer.rs b/devices/src/usb/xhci/xhci_transfer.rs index e166c1a..400cbbc 100644 --- a/devices/src/usb/xhci/xhci_transfer.rs +++ b/devices/src/usb/xhci/xhci_transfer.rs @@ -290,8 +290,13 @@ impl XhciTransfer { usb_debug!("device disconnected, detaching from port"); // If the device is gone, we don't need to send transfer completion event, cause we // are going to destroy everything related to this device anyway. - self.port.detach().map_err(Error::DetachPort)?; - return Ok(()); + return match self.port.detach() { + Ok(v) => Ok(v), + // It's acceptable for the port to be already disconnected + // as asynchronous transfer completions are processed. + Err(HubError::AlreadyDetached(_e)) => Ok(()), + Err(e) => Err(Error::DetachPort(e)), + }; } TransferStatus::Cancelled => { // TODO(jkwang) According to the spec, we should send a stopped event here. But |