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id = 2081
title = "[OHCI] OHCI_CC_DEVICENOTRESPONDING not set when transferring to a disconnected device"
state = "opened"
created_at = "2024-01-09T03:51:15.462Z"
closed_at = "n/a"
labels = ["USB"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2081"
host-os = "Ubuntu"
host-arch = "x86"
qemu-version = "QEMU emulator version 7.2.0"
guest-os = "n/a"
guest-arch = "n/a"
description = """If a USB device is disconnected and is cleaned up by qemu, subsequent transfers to that device address are ignored. On a real OHCI controller `OHCI_CC_DEVICENOTRESPONDING` bit is set and is reported as an error to the host.
qemu attempts to set it here https://github.com/qemu/qemu/blob/ffd454c67e38cc6df792733ebc5d967eee28ac0d/hw/usb/hcd-ohci.c#L795 which would work fine on a valid device handle.
However this check https://github.com/qemu/qemu/blob/ffd454c67e38cc6df792733ebc5d967eee28ac0d/hw/usb/hcd-ohci.c#L975 leaves early if no device handle is found so the error code is never set.
Fix is to set `OHCI_CC_DEVICENOTRESPONDING` if `ohci_find_device` fails before returning."""
reproduce = "n/a"
additional = "n/a"
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