Change function call order in device_bind_driver().

If we create symlinks (which might fail) before adding the device to the list
we don't have to clean up afterwards (which we didn't).
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>