The ID_PATH for a udl device looks like this:
$ udevadm info /dev/dri/card2 | grep -w ID_PATH
E: ID_PATH=pci-0000:00:14.0-usb-0:9.1:1.0
The parsing added in 0816e8fca6 ("linux: Make platform device probe
less fragile"), sets OdevAttributes::busid to "pci:0000:00:14.0", where
drmGetBusid() would have returned "3-9.1:1.0".
Identifying this as a "pci:*" device eventually causes the vendor/device
id check in probeSingleDevice() to fail, because a USB controller isn't
a supported device:
$ udevadm info --path=/devices/pci0000:00/0000:00:14.0 | grep -e VENDOR -e ID_PCI_CLASS
E: ID_PCI_CLASS_FROM_DATABASE=Serial bus controller
E: ID_VENDOR_FROM_DATABASE=Intel Corporation
Instead of parsing out "pci:0000:00:14.0" in this case, use
"usb:0:9.1:1.0" so the device probe will succeed.
Fixes: 0816e8fca6 ("linux: Make platform device probe less fragile")
Signed-off-by: Reza Arbab <arbab@linux.ibm.com>
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