Alexander Inyukhin wrote: > index d9d1b65..efc3aa0 100644 > --- a/drivers/cdrom/cdrom.c > +++ b/drivers/cdrom/cdrom.c > @@ -394,6 +394,8 @@ int register_cdrom(struct cdrom_device_info *cdi) > > if (cdo->open == NULL || cdo->release == NULL) > return -EINVAL; > + if (cdo->audio_ioctl == NULL) > + return -EINVAL; Maybe sticking a BUG_ON() is a good idea just in case? -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html