Wang Sheng-Hui <shhuiw@xxxxxxxxxxx> writes:
> Current max block major is 254, corresponding to 255 elements in
> major_names. Correct the comment of register_blkdev() to reflect
> the real range.
>
> Signed-off-by: Wang Sheng-Hui <shhuiw@xxxxxxxxxxx>
Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
> ---
> block/genhd.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/block/genhd.c b/block/genhd.c
> index 9f42526..2a733a6 100644
> --- a/block/genhd.c
> +++ b/block/genhd.c
> @@ -271,18 +271,18 @@ void blkdev_show(struct seq_file *seqf, off_t offset)
> /**
> * register_blkdev - register a new block device
> *
> - * @major: the requested major device number [1..255]. If @major=0, try to
> + * @major: the requested major device number [0..254]. If @major=0, try to
> * allocate any unused major number.
> * @name: the name of the new block device as a zero terminated string
> *
> * The @name must be unique within the system.
> *
> * The return value depends on the @major input parameter.
> - * - if a major device number was requested in range [1..255] then the
> + * - if a major device number was requested in range [1..254] then the
> * function returns zero on success, or a negative error code
> * - if any unused major number was requested with @major=0 parameter
> * then the return value is the allocated major number in range
> - * [1..255] or a negative error code otherwise
> + * [1..254] or a negative error code otherwise
> */
> int register_blkdev(unsigned int major, const char *name)
> {
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