Re: [PATCH v2 5/6] block: add initial error handling for *add_disk()* and friends

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

> -static inline void add_disk(struct gendisk *disk)
> +extern int device_add_disk(struct device *parent, struct gendisk *disk,
> +			   const struct attribute_group **groups);
> +static inline int add_disk(struct gendisk *disk)
>  {
> -	device_add_disk(NULL, disk, NULL);
> +	return device_add_disk(NULL, disk, NULL);
>  }
> -extern void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk);
> -static inline void add_disk_no_queue_reg(struct gendisk *disk)
> +extern int device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk);

Nit: please drop the pointless externs and avoid > 80 character lines.