As "none" is a legal value represented in the sysfs attribute dev_busid this patch prevents libvirt from incorrectly reporting an internal error. Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com&gt; Suggested-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- src/node_device/node_device_udev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index 656130e98a..44ec22cf75 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -1140,7 +1140,7 @@ udevProcessCSS(struct udev_device *device, /* process optional channel devices information */ udevGetStringSysfsAttr(device, "dev_busid", &dev_busid); - if (dev_busid != NULL) + if (dev_busid != NULL && STRNEQ(dev_busid, "none")) def->caps->data.ccw_dev.channel_dev_addr = virCCWDeviceAddressFromString(dev_busid); if (virNodeDeviceGetCSSDynamicCaps(def->sysfs_path, &def->caps->data.ccw_dev) < 0) -- 2.36.1