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c0dcadad6c
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 in0816e8fca6("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>