Don't try to initialize devices that don't have driver_data assigned
to their pci ids.
Reported-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NAlexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>